diff --git a/emgauwa-core.conf b/emgauwa-core.conf new file mode 100644 index 0000000..b6ddf1a --- /dev/null +++ b/emgauwa-core.conf @@ -0,0 +1,19 @@ +[core] +database = "emgauwa-core.sqlite" +content-dir = "/usr/share/webapps/emgauwa" +include = "./emgauwa-core.conf.d/" +not-found-file = "404.html" +not-found-file-mime = "text/html" +not-found-content = "404 - NOT FOUND" +not-found-content-type = "text/plain" + +[ports] +server = 5000 +# 4422 for testing; 4421 for dev-env; 4420 for testing-env; 4419 for prod-env +discovery = 4421 +# 1886 for testing; 1885 for dev-env; 1884 for testing-env; 1883 for prod-env +mqtt = 1885 + +[logging] +level = "debug" +file = "stdout" diff --git a/include/cli.h b/include/cli.h index 54e48ad..cf3e2b1 100644 --- a/include/cli.h +++ b/include/cli.h @@ -3,11 +3,10 @@ typedef struct cli { - char *config_path; + const char *config_file; } cli_t; - void -cli_parse(int argc, const char **argv, config_t *config); +cli_parse(int argc, const char **argv, cli_t *cli); #endif /* CORE_CLI_H */ diff --git a/include/config.h b/include/config.h index 7192dd3..ca9fbff 100644 --- a/include/config.h +++ b/include/config.h @@ -8,7 +8,6 @@ typedef struct { - char *file; char *include; char *database; char *user; @@ -46,10 +45,13 @@ config_free(); void config_load_string(char **holder, const char *value); -int -config_load(config_t *config); +void +config_load(config_t *config, const char *cli_config_file); void -config_load_directory(config_t *config, char *directory_name); +config_load_file(config_t *config, const char *file_name); + +void +config_load_directory(config_t *config, const char *directory_name); #endif /* CORE_CONFIG_H */ diff --git a/include/constants.h b/include/constants.h index 31e88c8..d83009b 100644 --- a/include/constants.h +++ b/include/constants.h @@ -22,7 +22,8 @@ #define PIFACE_GPIO_BASE 200 -#define DEFAULT_CONFIG_PATH "emgauwa-core.toml" +#define DEFAULT_CONFIG_PATH "emgauwa-core.conf" +#define DEFAULT_GLOBAL_CONFIG_PATH "/etc/emgauwa/core.conf" #define DEFAULT_DISCOVERY_PORT 4421 #define DEFAULT_MQTT_PORT 1885 #define DEFAULT_SERVER_PORT 5000 diff --git a/src/cli.c b/src/cli.c index ac96c1c..2719aa1 100644 --- a/src/cli.c +++ b/src/cli.c @@ -5,25 +5,29 @@ #include #include +#include #include #include #include +cli_t *global_cli; + static const char *const usage[] = { "core [options]", NULL, }; void -cli_parse(int argc, const char **argv, config_t *config) +cli_parse(int argc, const char **argv, cli_t *cli) { - const char *config_file = NULL; + cli->config_file = NULL; + int version = 0; struct argparse_option options[] = { OPT_HELP(), OPT_GROUP("Basic options"), - OPT_STRING('c', "config", &config_file, "path to config file", NULL, 0, OPT_NONEG), + OPT_STRING('c', "config", &cli->config_file, "path to config file", NULL, 0, OPT_NONEG), OPT_BOOLEAN('v', "version", &version, "print version", NULL, 0, OPT_NONEG), OPT_END(), }; @@ -37,11 +41,6 @@ cli_parse(int argc, const char **argv, config_t *config) ); argparse_parse(&argparse, argc, argv); - if(config_file) - { - config_load_string(&config->file, config_file); - } - if(version) { printf("%s\n", EMGAUWA_CORE_VERSION); diff --git a/src/config.c b/src/config.c index 4d34e0a..cf97287 100644 --- a/src/config.c +++ b/src/config.c @@ -200,7 +200,6 @@ config_init() { global_config = calloc(1, sizeof(config_t)); - config_load_string(&global_config->file, DEFAULT_CONFIG_PATH); global_config->ports.discovery = DEFAULT_DISCOVERY_PORT; global_config->ports.mqtt = DEFAULT_MQTT_PORT; @@ -222,7 +221,6 @@ config_init() void config_free() { - free(global_config->file); free(global_config->include); free(global_config->database); free(global_config->user); @@ -251,23 +249,64 @@ config_load_string(char **holder, const char *value) *holder = new_holder; } -int -config_load(config_t *config) +static int +config_try_file(const char *path) +{ + if(access(path, F_OK) != 0) + { + LOGGER_DEBUG("'%s' does not exist\n", path); + return 1; + } + if(access(path, R_OK) != 0) + { + LOGGER_DEBUG("no read access for '%s'\n", path); + return 1; + } + return 0; +} + +void +config_load(config_t *config, const char *cli_config_file) +{ + if(cli_config_file) + { + if(config_try_file(cli_config_file) == 0) + { + config_load_file(config, cli_config_file); + return; + } + LOGGER_CRIT("unable to open the passed config file '%s'\n", cli_config_file); + exit(1); + } + if(config_try_file(DEFAULT_CONFIG_PATH) == 0) + { + config_load_file(config, DEFAULT_CONFIG_PATH); + return; + } + if(config_try_file(DEFAULT_GLOBAL_CONFIG_PATH) == 0) + { + config_load_file(config, DEFAULT_GLOBAL_CONFIG_PATH); + return; + } +} + +void +config_load_file(config_t *config, const char *file_name) { FILE *fp; toml_table_t* config_toml; char errbuf[256]; /* Open the file and parse content */ - fp = fopen(global_config->file, "r"); + fp = fopen(file_name, "r"); if(fp == NULL) { - LOGGER_CRIT("unable to open config file '%s'\n", global_config->file); + LOGGER_CRIT("unable to open config file '%s'\n", file_name); exit(1); } config_toml = toml_parse_file(fp, errbuf, sizeof(errbuf)); fclose(fp); if(config_toml == NULL) { - LOGGER_CRIT("unable to parse config file '%s': %s\n", global_config->file, errbuf); + LOGGER_CRIT("unable to parse config file '%s': %s\n", file_name, errbuf); exit(1); } @@ -291,19 +330,19 @@ config_load(config_t *config) toml_free(config_toml); - return 0; + LOGGER_DEBUG("Loaded config from %s\n", file_name); } void -config_load_directory(config_t *config, char *directory_name) +config_load_directory(config_t *config, const char *directory_name) { - struct dirent *pDirent; - DIR *pDir; + struct dirent *directory_entry; + DIR *directory; (void)config; - pDir = opendir (directory_name); - if(pDir == NULL) + directory = opendir(directory_name); + if(directory == NULL) { LOGGER_CRIT("cannot open directory '%s': %s\n", directory_name, strerror(errno)); exit(1); @@ -311,12 +350,21 @@ config_load_directory(config_t *config, char *directory_name) // Process each entry. - while((pDirent = readdir(pDir)) != NULL) + while((directory_entry = readdir(directory)) != NULL) { - LOGGER_DEBUG("including: %s\n", pDirent->d_name); + struct stat sb; + const char *entry_name = directory_entry->d_name; + if(stat(entry_name, &sb)) + { + LOGGER_WARNING("failed to get info for '%s': %s\n", entry_name, strerror(errno)); + } + if(S_ISREG(sb.st_mode)) + { + config_load_file(config, entry_name); + } } // Close directory and exit. - closedir(pDir); + closedir(directory); } diff --git a/src/main.c b/src/main.c index c9829fd..026522d 100644 --- a/src/main.c +++ b/src/main.c @@ -59,9 +59,10 @@ main(int argc, const char** argv) config_init(); - cli_parse(argc, argv, global_config); + cli_t cli; + cli_parse(argc, argv, &cli); - config_load(global_config); + config_load(global_config, cli.config_file); if(global_config->logging.file == NULL) { @@ -73,8 +74,6 @@ main(int argc, const char** argv) config_load_directory(global_config, global_config->include); } - LOGGER_DEBUG("Loaded config from %s\n", global_config->file); - /******************** SETUP CONNECTION ********************/ diff --git a/tests/emgauwa-core-testing.conf b/tests/emgauwa-core-testing.conf new file mode 100644 index 0000000..f475720 --- /dev/null +++ b/tests/emgauwa-core-testing.conf @@ -0,0 +1,18 @@ +[core] +database = "emgauwa-core.sqlite" +content-dir = "." +not-found-file = "404.html" +not-found-file-mime = "text/html" +not-found-content = "404 - NOT FOUND" +not-found-content-type = "text/plain" + +[ports] +server = 5000 +# 4422 for testing; 4421 for dev-env; 4420 for testing-env; 4419 for prod-env +discovery = 4422 +# 1886 for testing; 1885 for dev-env; 1884 for testing-env; 1883 for prod-env +mqtt = 1886 + +[logging] +level = "debug" +file = "stdout" diff --git a/tests/run_tests.sh b/tests/run_tests.sh index c3759b3..2150f05 100755 --- a/tests/run_tests.sh +++ b/tests/run_tests.sh @@ -41,7 +41,7 @@ touch $working_dir/index.html cp $1 $working_dir/core -valgrind_emgauwa $working_dir/core -c $source_dir/emgauwa-core-testing.toml >>$working_dir/core.log 2>&1 & +valgrind_emgauwa $working_dir/core -c $source_dir/emgauwa-core-testing.conf >>$working_dir/core.log 2>&1 & core_id=$! diff --git a/vendor/toml.c b/vendor/toml.c new file mode 100644 index 0000000..98f765b --- /dev/null +++ b/vendor/toml.c @@ -0,0 +1,2274 @@ +/* + + MIT License + + Copyright (c) 2017 - 2019 CK Tan + https://github.com/cktan/tomlc99 + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + +*/ +#define _POSIX_C_SOURCE 200809L +#include +#include +#include +#include +#include +#include +#include +#include +#include "toml.h" + + +static void* (*ppmalloc)(size_t) = malloc; +static void (*ppfree)(void*) = free; + +void toml_set_memutil(void* (*xxmalloc)(size_t), + void (*xxfree)(void*)) +{ + if (xxmalloc) ppmalloc = xxmalloc; + if (xxfree) ppfree = xxfree; +} + + +#define MALLOC(a) ppmalloc(a) +#define FREE(a) ppfree(a) + +static void* CALLOC(size_t nmemb, size_t sz) +{ + int nb = sz * nmemb; + void* p = MALLOC(nb); + if (p) { + memset(p, 0, nb); + } + return p; +} + + +static char* STRDUP(const char* s) +{ + int len = strlen(s); + char* p = MALLOC(len+1); + if (p) { + memcpy(p, s, len); + p[len] = 0; + } + return p; +} + +static char* STRNDUP(const char* s, size_t n) +{ + size_t len = strnlen(s, n); + char* p = MALLOC(len+1); + if (p) { + memcpy(p, s, len); + p[len] = 0; + } + return p; +} + + + +/** + * Convert a char in utf8 into UCS, and store it in *ret. + * Return #bytes consumed or -1 on failure. + */ +int toml_utf8_to_ucs(const char* orig, int len, int64_t* ret) +{ + const unsigned char* buf = (const unsigned char*) orig; + unsigned i = *buf++; + int64_t v; + + /* 0x00000000 - 0x0000007F: + 0xxxxxxx + */ + if (0 == (i >> 7)) { + if (len < 1) return -1; + v = i; + return *ret = v, 1; + } + /* 0x00000080 - 0x000007FF: + 110xxxxx 10xxxxxx + */ + if (0x6 == (i >> 5)) { + if (len < 2) return -1; + v = i & 0x1f; + for (int j = 0; j < 1; j++) { + i = *buf++; + if (0x2 != (i >> 6)) return -1; + v = (v << 6) | (i & 0x3f); + } + return *ret = v, (const char*) buf - orig; + } + + /* 0x00000800 - 0x0000FFFF: + 1110xxxx 10xxxxxx 10xxxxxx + */ + if (0xE == (i >> 4)) { + if (len < 3) return -1; + v = i & 0x0F; + for (int j = 0; j < 2; j++) { + i = *buf++; + if (0x2 != (i >> 6)) return -1; + v = (v << 6) | (i & 0x3f); + } + return *ret = v, (const char*) buf - orig; + } + + /* 0x00010000 - 0x001FFFFF: + 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + */ + if (0x1E == (i >> 3)) { + if (len < 4) return -1; + v = i & 0x07; + for (int j = 0; j < 3; j++) { + i = *buf++; + if (0x2 != (i >> 6)) return -1; + v = (v << 6) | (i & 0x3f); + } + return *ret = v, (const char*) buf - orig; + } + + /* 0x00200000 - 0x03FFFFFF: + 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + */ + if (0x3E == (i >> 2)) { + if (len < 5) return -1; + v = i & 0x03; + for (int j = 0; j < 4; j++) { + i = *buf++; + if (0x2 != (i >> 6)) return -1; + v = (v << 6) | (i & 0x3f); + } + return *ret = v, (const char*) buf - orig; + } + + /* 0x04000000 - 0x7FFFFFFF: + 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + */ + if (0x7e == (i >> 1)) { + if (len < 6) return -1; + v = i & 0x01; + for (int j = 0; j < 5; j++) { + i = *buf++; + if (0x2 != (i >> 6)) return -1; + v = (v << 6) | (i & 0x3f); + } + return *ret = v, (const char*) buf - orig; + } + return -1; +} + + +/** + * Convert a UCS char to utf8 code, and return it in buf. + * Return #bytes used in buf to encode the char, or + * -1 on error. + */ +int toml_ucs_to_utf8(int64_t code, char buf[6]) +{ + /* http://stackoverflow.com/questions/6240055/manually-converting-unicode-codepoints-into-utf-8-and-utf-16 */ + /* The UCS code values 0xd800–0xdfff (UTF-16 surrogates) as well + * as 0xfffe and 0xffff (UCS noncharacters) should not appear in + * conforming UTF-8 streams. + */ + if (0xd800 <= code && code <= 0xdfff) return -1; + if (0xfffe <= code && code <= 0xffff) return -1; + + /* 0x00000000 - 0x0000007F: + 0xxxxxxx + */ + if (code < 0) return -1; + if (code <= 0x7F) { + buf[0] = (unsigned char) code; + return 1; + } + + /* 0x00000080 - 0x000007FF: + 110xxxxx 10xxxxxx + */ + if (code <= 0x000007FF) { + buf[0] = 0xc0 | (code >> 6); + buf[1] = 0x80 | (code & 0x3f); + return 2; + } + + /* 0x00000800 - 0x0000FFFF: + 1110xxxx 10xxxxxx 10xxxxxx + */ + if (code <= 0x0000FFFF) { + buf[0] = 0xe0 | (code >> 12); + buf[1] = 0x80 | ((code >> 6) & 0x3f); + buf[2] = 0x80 | (code & 0x3f); + return 3; + } + + /* 0x00010000 - 0x001FFFFF: + 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + */ + if (code <= 0x001FFFFF) { + buf[0] = 0xf0 | (code >> 18); + buf[1] = 0x80 | ((code >> 12) & 0x3f); + buf[2] = 0x80 | ((code >> 6) & 0x3f); + buf[3] = 0x80 | (code & 0x3f); + return 4; + } + + /* 0x00200000 - 0x03FFFFFF: + 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + */ + if (code <= 0x03FFFFFF) { + buf[0] = 0xf8 | (code >> 24); + buf[1] = 0x80 | ((code >> 18) & 0x3f); + buf[2] = 0x80 | ((code >> 12) & 0x3f); + buf[3] = 0x80 | ((code >> 6) & 0x3f); + buf[4] = 0x80 | (code & 0x3f); + return 5; + } + + /* 0x04000000 - 0x7FFFFFFF: + 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + */ + if (code <= 0x7FFFFFFF) { + buf[0] = 0xfc | (code >> 30); + buf[1] = 0x80 | ((code >> 24) & 0x3f); + buf[2] = 0x80 | ((code >> 18) & 0x3f); + buf[3] = 0x80 | ((code >> 12) & 0x3f); + buf[4] = 0x80 | ((code >> 6) & 0x3f); + buf[5] = 0x80 | (code & 0x3f); + return 6; + } + + return -1; +} + +/* + * TOML has 3 data structures: value, array, table. + * Each of them can have identification key. + */ +typedef struct toml_keyval_t toml_keyval_t; +struct toml_keyval_t { + const char* key; /* key to this value */ + const char* val; /* the raw value */ +}; + + +struct toml_array_t { + const char* key; /* key to this array */ + int kind; /* element kind: 'v'alue, 'a'rray, or 't'able */ + int type; /* for value kind: 'i'nt, 'd'ouble, 'b'ool, 's'tring, 't'ime, 'D'ate, 'T'imestamp */ + + int nelem; /* number of elements */ + union { + char** val; + toml_array_t** arr; + toml_table_t** tab; + } u; +}; + + +struct toml_table_t { + const char* key; /* key to this table */ + bool implicit; /* table was created implicitly */ + + /* key-values in the table */ + int nkval; + toml_keyval_t** kval; + + /* arrays in the table */ + int narr; + toml_array_t** arr; + + /* tables in the table */ + int ntab; + toml_table_t** tab; +}; + + +static inline void xfree(const void* x) { if (x) FREE((void*)(intptr_t)x); } + + +enum tokentype_t { + INVALID, + DOT, + COMMA, + EQUAL, + LBRACE, + RBRACE, + NEWLINE, + LBRACKET, + RBRACKET, + STRING, +}; +typedef enum tokentype_t tokentype_t; + +typedef struct token_t token_t; +struct token_t { + tokentype_t tok; + int lineno; + char* ptr; /* points into context->start */ + int len; + int eof; +}; + + +typedef struct context_t context_t; +struct context_t { + char* start; + char* stop; + char* errbuf; + int errbufsz; + + token_t tok; + toml_table_t* root; + toml_table_t* curtab; + + struct { + int top; + char* key[10]; + token_t tok[10]; + } tpath; + +}; + +#define STRINGIFY(x) #x +#define TOSTRING(x) STRINGIFY(x) +#define FLINE __FILE__ ":" TOSTRING(__LINE__) + +static int next_token(context_t* ctx, int dotisspecial); + +/* + Error reporting. Call when an error is detected. Always return -1. +*/ +static int e_outofmemory(context_t* ctx, const char* fline) +{ + snprintf(ctx->errbuf, ctx->errbufsz, "ERROR: out of memory (%s)", fline); + return -1; +} + + +static int e_internal(context_t* ctx, const char* fline) +{ + snprintf(ctx->errbuf, ctx->errbufsz, "internal error (%s)", fline); + return -1; +} + +static int e_syntax(context_t* ctx, int lineno, const char* msg) +{ + snprintf(ctx->errbuf, ctx->errbufsz, "line %d: %s", lineno, msg); + return -1; +} + +static int e_badkey(context_t* ctx, int lineno) +{ + snprintf(ctx->errbuf, ctx->errbufsz, "line %d: bad key", lineno); + return -1; +} + +static int e_keyexists(context_t* ctx, int lineno) +{ + snprintf(ctx->errbuf, ctx->errbufsz, "line %d: key exists", lineno); + return -1; +} + +static void* expand(void* p, int sz, int newsz) +{ + void* s = MALLOC(newsz); + if (!s) return 0; + + memcpy(s, p, sz); + FREE(p); + return s; +} + +static void** expand_ptrarr(void** p, int n) +{ + void** s = MALLOC((n+1) * sizeof(void*)); + if (!s) return 0; + + s[n] = 0; + memcpy(s, p, n * sizeof(void*)); + FREE(p); + return s; +} + + +static char* norm_lit_str(const char* src, int srclen, + int multiline, + char* errbuf, int errbufsz) +{ + char* dst = 0; /* will write to dst[] and return it */ + int max = 0; /* max size of dst[] */ + int off = 0; /* cur offset in dst[] */ + const char* sp = src; + const char* sq = src + srclen; + int ch; + + /* scan forward on src */ + for (;;) { + if (off >= max - 10) { /* have some slack for misc stuff */ + int newmax = max + 50; + char* x = expand(dst, max, newmax); + if (!x) { + xfree(dst); + snprintf(errbuf, errbufsz, "out of memory"); + return 0; + } + dst = x; + max = newmax; + } + + /* finished? */ + if (sp >= sq) break; + + ch = *sp++; + /* control characters other than tab is not allowed */ + if ((0 <= ch && ch <= 0x08) + || (0x0a <= ch && ch <= 0x1f) + || (ch == 0x7f)) { + if (! (multiline && (ch == '\r' || ch == '\n'))) { + xfree(dst); + snprintf(errbuf, errbufsz, "invalid char U+%04x", ch); + return 0; + } + } + + // a plain copy suffice + dst[off++] = ch; + } + + dst[off++] = 0; + return dst; +} + + + + +/* + * Convert src to raw unescaped utf-8 string. + * Returns NULL if error with errmsg in errbuf. + */ +static char* norm_basic_str(const char* src, int srclen, + int multiline, + char* errbuf, int errbufsz) +{ + char* dst = 0; /* will write to dst[] and return it */ + int max = 0; /* max size of dst[] */ + int off = 0; /* cur offset in dst[] */ + const char* sp = src; + const char* sq = src + srclen; + int ch; + + /* scan forward on src */ + for (;;) { + if (off >= max - 10) { /* have some slack for misc stuff */ + int newmax = max + 50; + char* x = expand(dst, max, newmax); + if (!x) { + xfree(dst); + snprintf(errbuf, errbufsz, "out of memory"); + return 0; + } + dst = x; + max = newmax; + } + + /* finished? */ + if (sp >= sq) break; + + ch = *sp++; + if (ch != '\\') { + /* these chars must be escaped: U+0000 to U+0008, U+000A to U+001F, U+007F */ + if ((0 <= ch && ch <= 0x08) + || (0x0a <= ch && ch <= 0x1f) + || (ch == 0x7f)) { + if (! (multiline && (ch == '\r' || ch == '\n'))) { + xfree(dst); + snprintf(errbuf, errbufsz, "invalid char U+%04x", ch); + return 0; + } + } + + // a plain copy suffice + dst[off++] = ch; + continue; + } + + /* ch was backslash. we expect the escape char. */ + if (sp >= sq) { + snprintf(errbuf, errbufsz, "last backslash is invalid"); + xfree(dst); + return 0; + } + + /* for multi-line, we want to kill line-ending-backslash ... */ + if (multiline) { + + // if there is only whitespace after the backslash ... + if (sp[strspn(sp, " \t\r")] == '\n') { + /* skip all the following whitespaces */ + sp += strspn(sp, " \t\r\n"); + continue; + } + } + + /* get the escaped char */ + ch = *sp++; + switch (ch) { + case 'u': case 'U': + { + int64_t ucs = 0; + int nhex = (ch == 'u' ? 4 : 8); + for (int i = 0; i < nhex; i++) { + if (sp >= sq) { + snprintf(errbuf, errbufsz, "\\%c expects %d hex chars", ch, nhex); + xfree(dst); + return 0; + } + ch = *sp++; + int v = ('0' <= ch && ch <= '9') + ? ch - '0' + : (('A' <= ch && ch <= 'F') ? ch - 'A' + 10 : -1); + if (-1 == v) { + snprintf(errbuf, errbufsz, "invalid hex chars for \\u or \\U"); + xfree(dst); + return 0; + } + ucs = ucs * 16 + v; + } + int n = toml_ucs_to_utf8(ucs, &dst[off]); + if (-1 == n) { + snprintf(errbuf, errbufsz, "illegal ucs code in \\u or \\U"); + xfree(dst); + return 0; + } + off += n; + } + continue; + + case 'b': ch = '\b'; break; + case 't': ch = '\t'; break; + case 'n': ch = '\n'; break; + case 'f': ch = '\f'; break; + case 'r': ch = '\r'; break; + case '"': ch = '"'; break; + case '\\': ch = '\\'; break; + default: + snprintf(errbuf, errbufsz, "illegal escape char \\%c", ch); + xfree(dst); + return 0; + } + + dst[off++] = ch; + } + + // Cap with NUL and return it. + dst[off++] = 0; + return dst; +} + + +/* Normalize a key. Convert all special chars to raw unescaped utf-8 chars. */ +static char* normalize_key(context_t* ctx, token_t strtok) +{ + const char* sp = strtok.ptr; + const char* sq = strtok.ptr + strtok.len; + int lineno = strtok.lineno; + char* ret; + int ch = *sp; + char ebuf[80]; + + /* handle quoted string */ + if (ch == '\'' || ch == '\"') { + /* if ''' or """, take 3 chars off front and back. Else, take 1 char off. */ + int multiline = 0; + if (sp[1] == ch && sp[2] == ch) { + sp += 3, sq -= 3; + multiline = 1; + } + else + sp++, sq--; + + if (ch == '\'') { + /* for single quote, take it verbatim. */ + if (! (ret = STRNDUP(sp, sq - sp))) { + e_outofmemory(ctx, FLINE); + return 0; + } + } else { + /* for double quote, we need to normalize */ + ret = norm_basic_str(sp, sq - sp, multiline, ebuf, sizeof(ebuf)); + if (!ret) { + e_syntax(ctx, lineno, ebuf); + return 0; + } + } + + /* newlines are not allowed in keys */ + if (strchr(ret, '\n')) { + xfree(ret); + e_badkey(ctx, lineno); + return 0; + } + return ret; + } + + /* for bare-key allow only this regex: [A-Za-z0-9_-]+ */ + const char* xp; + for (xp = sp; xp != sq; xp++) { + int k = *xp; + if (isalnum(k)) continue; + if (k == '_' || k == '-') continue; + e_badkey(ctx, lineno); + return 0; + } + + /* dup and return it */ + if (! (ret = STRNDUP(sp, sq - sp))) { + e_outofmemory(ctx, FLINE); + return 0; + } + return ret; +} + + +/* + * Look up key in tab. Return 0 if not found, or + * 'v'alue, 'a'rray or 't'able depending on the element. + */ +static int check_key(toml_table_t* tab, const char* key, + toml_keyval_t** ret_val, + toml_array_t** ret_arr, + toml_table_t** ret_tab) +{ + int i; + void* dummy; + + if (!ret_tab) ret_tab = (toml_table_t**) &dummy; + if (!ret_arr) ret_arr = (toml_array_t**) &dummy; + if (!ret_val) ret_val = (toml_keyval_t**) &dummy; + + *ret_tab = 0; *ret_arr = 0; *ret_val = 0; + + for (i = 0; i < tab->nkval; i++) { + if (0 == strcmp(key, tab->kval[i]->key)) { + *ret_val = tab->kval[i]; + return 'v'; + } + } + for (i = 0; i < tab->narr; i++) { + if (0 == strcmp(key, tab->arr[i]->key)) { + *ret_arr = tab->arr[i]; + return 'a'; + } + } + for (i = 0; i < tab->ntab; i++) { + if (0 == strcmp(key, tab->tab[i]->key)) { + *ret_tab = tab->tab[i]; + return 't'; + } + } + return 0; +} + + +static int key_kind(toml_table_t* tab, const char* key) +{ + return check_key(tab, key, 0, 0, 0); +} + +/* Create a keyval in the table. + */ +static toml_keyval_t* create_keyval_in_table(context_t* ctx, toml_table_t* tab, token_t keytok) +{ + /* first, normalize the key to be used for lookup. + * remember to free it if we error out. + */ + char* newkey = normalize_key(ctx, keytok); + if (!newkey) return 0; + + /* if key exists: error out. */ + toml_keyval_t* dest = 0; + if (key_kind(tab, newkey)) { + xfree(newkey); + e_keyexists(ctx, keytok.lineno); + return 0; + } + + /* make a new entry */ + int n = tab->nkval; + toml_keyval_t** base; + if (0 == (base = (toml_keyval_t**) expand_ptrarr((void**)tab->kval, n))) { + xfree(newkey); + e_outofmemory(ctx, FLINE); + return 0; + } + tab->kval = base; + + if (0 == (base[n] = (toml_keyval_t*) CALLOC(1, sizeof(*base[n])))) { + xfree(newkey); + e_outofmemory(ctx, FLINE); + return 0; + } + dest = tab->kval[tab->nkval++]; + + /* save the key in the new value struct */ + dest->key = newkey; + return dest; +} + + +/* Create a table in the table. + */ +static toml_table_t* create_keytable_in_table(context_t* ctx, toml_table_t* tab, token_t keytok) +{ + /* first, normalize the key to be used for lookup. + * remember to free it if we error out. + */ + char* newkey = normalize_key(ctx, keytok); + if (!newkey) return 0; + + /* if key exists: error out */ + toml_table_t* dest = 0; + if (check_key(tab, newkey, 0, 0, &dest)) { + xfree(newkey); /* don't need this anymore */ + + /* special case: if table exists, but was created implicitly ... */ + if (dest && dest->implicit) { + /* we make it explicit now, and simply return it. */ + dest->implicit = false; + return dest; + } + e_keyexists(ctx, keytok.lineno); + return 0; + } + + /* create a new table entry */ + int n = tab->ntab; + toml_table_t** base; + if (0 == (base = (toml_table_t**) expand_ptrarr((void**)tab->tab, n))) { + xfree(newkey); + e_outofmemory(ctx, FLINE); + return 0; + } + tab->tab = base; + + if (0 == (base[n] = (toml_table_t*) CALLOC(1, sizeof(*base[n])))) { + xfree(newkey); + e_outofmemory(ctx, FLINE); + return 0; + } + dest = tab->tab[tab->ntab++]; + + /* save the key in the new table struct */ + dest->key = newkey; + return dest; +} + + +/* Create an array in the table. + */ +static toml_array_t* create_keyarray_in_table(context_t* ctx, + toml_table_t* tab, + token_t keytok, + char kind) +{ + /* first, normalize the key to be used for lookup. + * remember to free it if we error out. + */ + char* newkey = normalize_key(ctx, keytok); + if (!newkey) return 0; + + /* if key exists: error out */ + if (key_kind(tab, newkey)) { + xfree(newkey); /* don't need this anymore */ + e_keyexists(ctx, keytok.lineno); + return 0; + } + + /* make a new array entry */ + int n = tab->narr; + toml_array_t** base; + if (0 == (base = (toml_array_t**) expand_ptrarr((void**)tab->arr, n))) { + xfree(newkey); + e_outofmemory(ctx, FLINE); + return 0; + } + tab->arr = base; + + if (0 == (base[n] = (toml_array_t*) CALLOC(1, sizeof(*base[n])))) { + xfree(newkey); + e_outofmemory(ctx, FLINE); + return 0; + } + toml_array_t* dest = tab->arr[tab->narr++]; + + /* save the key in the new array struct */ + dest->key = newkey; + dest->kind = kind; + return dest; +} + +/* Create an array in an array + */ +static toml_array_t* create_array_in_array(context_t* ctx, + toml_array_t* parent) +{ + const int n = parent->nelem; + toml_array_t** base; + if (0 == (base = (toml_array_t**) expand_ptrarr((void**)parent->u.arr, n))) { + e_outofmemory(ctx, FLINE); + return 0; + } + parent->u.arr = base; + parent->nelem++; + + if (0 == (base[n] = (toml_array_t*) CALLOC(1, sizeof(*base[n])))) { + e_outofmemory(ctx, FLINE); + return 0; + } + + return parent->u.arr[n]; +} + +/* Create a table in an array + */ +static toml_table_t* create_table_in_array(context_t* ctx, + toml_array_t* parent) +{ + int n = parent->nelem; + toml_table_t** base; + if (0 == (base = (toml_table_t**) expand_ptrarr((void**)parent->u.tab, n))) { + e_outofmemory(ctx, FLINE); + return 0; + } + parent->u.tab = base; + + if (0 == (base[n] = (toml_table_t*) CALLOC(1, sizeof(*base[n])))) { + e_outofmemory(ctx, FLINE); + return 0; + } + + return parent->u.tab[parent->nelem++]; +} + + +static int skip_newlines(context_t* ctx, int isdotspecial) +{ + while (ctx->tok.tok == NEWLINE) { + if (next_token(ctx, isdotspecial)) return -1; + if (ctx->tok.eof) break; + } + return 0; +} + + +static int parse_keyval(context_t* ctx, toml_table_t* tab); + +static inline int eat_token(context_t* ctx, tokentype_t typ, int isdotspecial, const char* fline) +{ + if (ctx->tok.tok != typ) + return e_internal(ctx, fline); + + if (next_token(ctx, isdotspecial)) + return -1; + + return 0; +} + + + +/* We are at '{ ... }'. + * Parse the table. + */ +static int parse_table(context_t* ctx, toml_table_t* tab) +{ + if (eat_token(ctx, LBRACE, 1, FLINE)) + return -1; + + for (;;) { + if (ctx->tok.tok == NEWLINE) + return e_syntax(ctx, ctx->tok.lineno, "newline not allowed in inline table"); + + /* until } */ + if (ctx->tok.tok == RBRACE) + break; + + if (ctx->tok.tok != STRING) + return e_syntax(ctx, ctx->tok.lineno, "expect a string"); + + if (parse_keyval(ctx, tab)) + return -1; + + if (ctx->tok.tok == NEWLINE) + return e_syntax(ctx, ctx->tok.lineno, "newline not allowed in inline table"); + + /* on comma, continue to scan for next keyval */ + if (ctx->tok.tok == COMMA) { + if (eat_token(ctx, COMMA, 1, FLINE)) + return -1; + continue; + } + break; + } + + if (eat_token(ctx, RBRACE, 1, FLINE)) + return -1; + return 0; +} + +static int valtype(const char* val) +{ + toml_timestamp_t ts; + if (*val == '\'' || *val == '"') return 's'; + if (0 == toml_rtob(val, 0)) return 'b'; + if (0 == toml_rtoi(val, 0)) return 'i'; + if (0 == toml_rtod(val, 0)) return 'd'; + if (0 == toml_rtots(val, &ts)) { + if (ts.year && ts.hour) return 'T'; /* timestamp */ + if (ts.year) return 'D'; /* date */ + return 't'; /* time */ + } + return 'u'; /* unknown */ +} + + +/* We are at '[...]' */ +static int parse_array(context_t* ctx, toml_array_t* arr) +{ + if (eat_token(ctx, LBRACKET, 0, FLINE)) return -1; + + for (;;) { + if (skip_newlines(ctx, 0)) return -1; + + /* until ] */ + if (ctx->tok.tok == RBRACKET) break; + + switch (ctx->tok.tok) { + case STRING: + { + char* val = ctx->tok.ptr; + int vlen = ctx->tok.len; + + /* set array kind if this will be the first entry */ + if (arr->kind == 0) arr->kind = 'v'; + /* check array kind */ + if (arr->kind != 'v') + return e_syntax(ctx, ctx->tok.lineno, "a string array can only contain strings"); + + /* make a new value in array */ + char** tmp = (char**) expand_ptrarr((void**)arr->u.val, arr->nelem); + if (!tmp) + return e_outofmemory(ctx, FLINE); + + arr->u.val = tmp; + if (! (val = STRNDUP(val, vlen))) + return e_outofmemory(ctx, FLINE); + + arr->u.val[arr->nelem++] = val; + + /* set array type if this is the first entry, or check that the types matched. */ + if (arr->nelem == 1) + arr->type = valtype(arr->u.val[0]); + else if (arr->type != valtype(val)) { + return e_syntax(ctx, ctx->tok.lineno, + "array type mismatch while processing array of values"); + } + + if (eat_token(ctx, STRING, 0, FLINE)) return -1; + break; + } + + case LBRACKET: + { /* [ [array], [array] ... ] */ + /* set the array kind if this will be the first entry */ + if (arr->kind == 0) arr->kind = 'a'; + /* check array kind */ + if (arr->kind != 'a') { + return e_syntax(ctx, ctx->tok.lineno, + "array type mismatch while processing array of arrays"); + } + toml_array_t* subarr = create_array_in_array(ctx, arr); + if (!subarr) return -1; + if (parse_array(ctx, subarr)) return -1; + break; + } + + case LBRACE: + { /* [ {table}, {table} ... ] */ + /* set the array kind if this will be the first entry */ + if (arr->kind == 0) arr->kind = 't'; + /* check array kind */ + if (arr->kind != 't') { + return e_syntax(ctx, ctx->tok.lineno, + "array type mismatch while processing array of tables"); + } + toml_table_t* subtab = create_table_in_array(ctx, arr); + if (!subtab) return -1; + if (parse_table(ctx, subtab)) return -1; + break; + } + + default: + return e_syntax(ctx, ctx->tok.lineno, "syntax error"); + } + + if (skip_newlines(ctx, 0)) return -1; + + /* on comma, continue to scan for next element */ + if (ctx->tok.tok == COMMA) { + if (eat_token(ctx, COMMA, 0, FLINE)) return -1; + continue; + } + break; + } + + if (eat_token(ctx, RBRACKET, 1, FLINE)) return -1; + return 0; +} + + +/* handle lines like these: + key = "value" + key = [ array ] + key = { table } +*/ +static int parse_keyval(context_t* ctx, toml_table_t* tab) +{ + token_t key = ctx->tok; + if (eat_token(ctx, STRING, 1, FLINE)) return -1; + + if (ctx->tok.tok == DOT) { + /* handle inline dotted key. + e.g. + physical.color = "orange" + physical.shape = "round" + */ + toml_table_t* subtab = 0; + { + char* subtabstr = normalize_key(ctx, key); + subtab = toml_table_in(tab, subtabstr); + xfree(subtabstr); + } + if (!subtab) { + subtab = create_keytable_in_table(ctx, tab, key); + if (!subtab) return -1; + } + if (next_token(ctx, 1)) return -1; + if (parse_keyval(ctx, subtab)) return -1; + return 0; + } + + if (ctx->tok.tok != EQUAL) { + return e_syntax(ctx, ctx->tok.lineno, "missing ="); + } + + if (next_token(ctx, 0)) return -1; + + switch (ctx->tok.tok) { + case STRING: + { /* key = "value" */ + toml_keyval_t* keyval = create_keyval_in_table(ctx, tab, key); + if (!keyval) return -1; + token_t val = ctx->tok; + + assert(keyval->val == 0); + if (! (keyval->val = STRNDUP(val.ptr, val.len))) + return e_outofmemory(ctx, FLINE); + + if (next_token(ctx, 1)) return -1; + + return 0; + } + + case LBRACKET: + { /* key = [ array ] */ + toml_array_t* arr = create_keyarray_in_table(ctx, tab, key, 0); + if (!arr) return -1; + if (parse_array(ctx, arr)) return -1; + return 0; + } + + case LBRACE: + { /* key = { table } */ + toml_table_t* nxttab = create_keytable_in_table(ctx, tab, key); + if (!nxttab) return -1; + if (parse_table(ctx, nxttab)) return -1; + return 0; + } + + default: + return e_syntax(ctx, ctx->tok.lineno, "syntax error"); + } + return 0; +} + + +typedef struct tabpath_t tabpath_t; +struct tabpath_t { + int cnt; + token_t key[10]; +}; + +/* at [x.y.z] or [[x.y.z]] + * Scan forward and fill tabpath until it enters ] or ]] + * There will be at least one entry on return. + */ +static int fill_tabpath(context_t* ctx) +{ + int lineno = ctx->tok.lineno; + int i; + + /* clear tpath */ + for (i = 0; i < ctx->tpath.top; i++) { + char** p = &ctx->tpath.key[i]; + xfree(*p); + *p = 0; + } + ctx->tpath.top = 0; + + for (;;) { + if (ctx->tpath.top >= 10) + return e_syntax(ctx, lineno, "table path is too deep; max allowed is 10."); + + if (ctx->tok.tok != STRING) + return e_syntax(ctx, lineno, "invalid or missing key"); + + char* key = normalize_key(ctx, ctx->tok); + if (!key) return -1; + ctx->tpath.tok[ctx->tpath.top] = ctx->tok; + ctx->tpath.key[ctx->tpath.top] = key; + ctx->tpath.top++; + + if (next_token(ctx, 1)) return -1; + + if (ctx->tok.tok == RBRACKET) break; + + if (ctx->tok.tok != DOT) + return e_syntax(ctx, lineno, "invalid key"); + + if (next_token(ctx, 1)) return -1; + } + + if (ctx->tpath.top <= 0) + return e_syntax(ctx, lineno, "empty table selector"); + + return 0; +} + + +/* Walk tabpath from the root, and create new tables on the way. + * Sets ctx->curtab to the final table. + */ +static int walk_tabpath(context_t* ctx) +{ + /* start from root */ + toml_table_t* curtab = ctx->root; + + for (int i = 0; i < ctx->tpath.top; i++) { + const char* key = ctx->tpath.key[i]; + + toml_keyval_t* nextval = 0; + toml_array_t* nextarr = 0; + toml_table_t* nexttab = 0; + switch (check_key(curtab, key, &nextval, &nextarr, &nexttab)) { + case 't': + /* found a table. nexttab is where we will go next. */ + break; + + case 'a': + /* found an array. nexttab is the last table in the array. */ + if (nextarr->kind != 't') + return e_internal(ctx, FLINE); + + if (nextarr->nelem == 0) + return e_internal(ctx, FLINE); + + nexttab = nextarr->u.tab[nextarr->nelem-1]; + break; + + case 'v': + return e_keyexists(ctx, ctx->tpath.tok[i].lineno); + + default: + { /* Not found. Let's create an implicit table. */ + int n = curtab->ntab; + toml_table_t** base = (toml_table_t**) expand_ptrarr((void**)curtab->tab, n); + if (0 == base) + return e_outofmemory(ctx, FLINE); + + curtab->tab = base; + + if (0 == (base[n] = (toml_table_t*) CALLOC(1, sizeof(*base[n])))) + return e_outofmemory(ctx, FLINE); + + if (0 == (base[n]->key = STRDUP(key))) + return e_outofmemory(ctx, FLINE); + + nexttab = curtab->tab[curtab->ntab++]; + + /* tabs created by walk_tabpath are considered implicit */ + nexttab->implicit = true; + } + break; + } + + /* switch to next tab */ + curtab = nexttab; + } + + /* save it */ + ctx->curtab = curtab; + + return 0; +} + + +/* handle lines like [x.y.z] or [[x.y.z]] */ +static int parse_select(context_t* ctx) +{ + assert(ctx->tok.tok == LBRACKET); + + /* true if [[ */ + int llb = (ctx->tok.ptr + 1 < ctx->stop && ctx->tok.ptr[1] == '['); + /* need to detect '[[' on our own because next_token() will skip whitespace, + and '[ [' would be taken as '[[', which is wrong. */ + + /* eat [ or [[ */ + if (eat_token(ctx, LBRACKET, 1, FLINE)) return -1; + if (llb) { + assert(ctx->tok.tok == LBRACKET); + if (eat_token(ctx, LBRACKET, 1, FLINE)) return -1; + } + + if (fill_tabpath(ctx)) return -1; + + /* For [x.y.z] or [[x.y.z]], remove z from tpath. + */ + token_t z = ctx->tpath.tok[ctx->tpath.top-1]; + xfree(ctx->tpath.key[ctx->tpath.top-1]); + ctx->tpath.top--; + + /* set up ctx->curtab */ + if (walk_tabpath(ctx)) return -1; + + if (! llb) { + /* [x.y.z] -> create z = {} in x.y */ + toml_table_t* curtab = create_keytable_in_table(ctx, ctx->curtab, z); + if (!curtab) return -1; + ctx->curtab = curtab; + } else { + /* [[x.y.z]] -> create z = [] in x.y */ + toml_array_t* arr = 0; + { + char* zstr = normalize_key(ctx, z); + if (!zstr) return -1; + arr = toml_array_in(ctx->curtab, zstr); + xfree(zstr); + } + if (!arr) { + arr = create_keyarray_in_table(ctx, ctx->curtab, z, 't'); + if (!arr) return -1; + } + if (arr->kind != 't') + return e_syntax(ctx, z.lineno, "array mismatch"); + + /* add to z[] */ + toml_table_t* dest; + { + int n = arr->nelem; + toml_table_t** base = (toml_table_t**) expand_ptrarr((void**)arr->u.tab, n); + if (0 == base) + return e_outofmemory(ctx, FLINE); + + arr->u.tab = base; + + if (0 == (base[n] = CALLOC(1, sizeof(*base[n])))) + return e_outofmemory(ctx, FLINE); + + if (0 == (base[n]->key = STRDUP("__anon__"))) + return e_outofmemory(ctx, FLINE); + + dest = arr->u.tab[arr->nelem++]; + } + + ctx->curtab = dest; + } + + if (ctx->tok.tok != RBRACKET) { + return e_syntax(ctx, ctx->tok.lineno, "expects ]"); + } + if (llb) { + if (! (ctx->tok.ptr + 1 < ctx->stop && ctx->tok.ptr[1] == ']')) { + return e_syntax(ctx, ctx->tok.lineno, "expects ]]"); + } + if (eat_token(ctx, RBRACKET, 1, FLINE)) return -1; + } + + if (eat_token(ctx, RBRACKET, 1, FLINE)) + return -1; + + if (ctx->tok.tok != NEWLINE) + return e_syntax(ctx, ctx->tok.lineno, "extra chars after ] or ]]"); + + return 0; +} + + + + +toml_table_t* toml_parse(char* conf, + char* errbuf, + int errbufsz) +{ + context_t ctx; + + // clear errbuf + if (errbufsz <= 0) errbufsz = 0; + if (errbufsz > 0) errbuf[0] = 0; + + // init context + memset(&ctx, 0, sizeof(ctx)); + ctx.start = conf; + ctx.stop = ctx.start + strlen(conf); + ctx.errbuf = errbuf; + ctx.errbufsz = errbufsz; + + // start with an artificial newline of length 0 + ctx.tok.tok = NEWLINE; + ctx.tok.lineno = 1; + ctx.tok.ptr = conf; + ctx.tok.len = 0; + + // make a root table + if (0 == (ctx.root = CALLOC(1, sizeof(*ctx.root)))) { + e_outofmemory(&ctx, FLINE); + // Do not goto fail, root table not set up yet + return 0; + } + + // set root as default table + ctx.curtab = ctx.root; + + /* Scan forward until EOF */ + for (token_t tok = ctx.tok; ! tok.eof ; tok = ctx.tok) { + switch (tok.tok) { + + case NEWLINE: + if (next_token(&ctx, 1)) goto fail; + break; + + case STRING: + if (parse_keyval(&ctx, ctx.curtab)) goto fail; + + if (ctx.tok.tok != NEWLINE) { + e_syntax(&ctx, ctx.tok.lineno, "extra chars after value"); + goto fail; + } + + if (eat_token(&ctx, NEWLINE, 1, FLINE)) goto fail; + break; + + case LBRACKET: /* [ x.y.z ] or [[ x.y.z ]] */ + if (parse_select(&ctx)) goto fail; + break; + + default: + e_syntax(&ctx, tok.lineno, "syntax error"); + goto fail; + } + } + + /* success */ + for (int i = 0; i < ctx.tpath.top; i++) xfree(ctx.tpath.key[i]); + return ctx.root; + +fail: + // Something bad has happened. Free resources and return error. + for (int i = 0; i < ctx.tpath.top; i++) xfree(ctx.tpath.key[i]); + toml_free(ctx.root); + return 0; +} + + +toml_table_t* toml_parse_file(FILE* fp, + char* errbuf, + int errbufsz) +{ + int bufsz = 0; + char* buf = 0; + int off = 0; + + /* read from fp into buf */ + while (! feof(fp)) { + + if (off == bufsz) { + int xsz = bufsz + 1000; + char* x = expand(buf, bufsz, xsz); + if (!x) { + snprintf(errbuf, errbufsz, "out of memory"); + xfree(buf); + return 0; + } + buf = x; + bufsz = xsz; + } + + errno = 0; + int n = fread(buf + off, 1, bufsz - off, fp); + if (ferror(fp)) { + snprintf(errbuf, errbufsz, "%s", + errno ? strerror(errno) : "Error reading file"); + xfree(buf); + return 0; + } + off += n; + } + + /* tag on a NUL to cap the string */ + if (off == bufsz) { + int xsz = bufsz + 1; + char* x = expand(buf, bufsz, xsz); + if (!x) { + snprintf(errbuf, errbufsz, "out of memory"); + xfree(buf); + return 0; + } + buf = x; + bufsz = xsz; + } + buf[off] = 0; + + /* parse it, cleanup and finish */ + toml_table_t* ret = toml_parse(buf, errbuf, errbufsz); + xfree(buf); + return ret; +} + + +static void xfree_kval(toml_keyval_t* p) +{ + if (!p) return; + xfree(p->key); + xfree(p->val); + xfree(p); +} + +static void xfree_tab(toml_table_t* p); + +static void xfree_arr(toml_array_t* p) +{ + if (!p) return; + + xfree(p->key); + switch (p->kind) { + case 'v': + for (int i = 0; i < p->nelem; i++) xfree(p->u.val[i]); + xfree(p->u.val); + break; + + case 'a': + for (int i = 0; i < p->nelem; i++) xfree_arr(p->u.arr[i]); + xfree(p->u.arr); + break; + + case 't': + for (int i = 0; i < p->nelem; i++) xfree_tab(p->u.tab[i]); + xfree(p->u.tab); + break; + } + + xfree(p); +} + + +static void xfree_tab(toml_table_t* p) +{ + int i; + + if (!p) return; + + xfree(p->key); + + for (i = 0; i < p->nkval; i++) xfree_kval(p->kval[i]); + xfree(p->kval); + + for (i = 0; i < p->narr; i++) xfree_arr(p->arr[i]); + xfree(p->arr); + + for (i = 0; i < p->ntab; i++) xfree_tab(p->tab[i]); + xfree(p->tab); + + xfree(p); +} + + +void toml_free(toml_table_t* tab) +{ + xfree_tab(tab); +} + + +static void set_token(context_t* ctx, tokentype_t tok, int lineno, char* ptr, int len) +{ + token_t t; + t.tok = tok; + t.lineno = lineno; + t.ptr = ptr; + t.len = len; + t.eof = 0; + ctx->tok = t; +} + +static void set_eof(context_t* ctx, int lineno) +{ + set_token(ctx, NEWLINE, lineno, ctx->stop, 0); + ctx->tok.eof = 1; +} + + +/* Scan p for n digits compositing entirely of [0-9] */ +static int scan_digits(const char* p, int n) +{ + int ret = 0; + for ( ; n > 0 && isdigit(*p); n--, p++) { + ret = 10 * ret + (*p - '0'); + } + return n ? -1 : ret; +} + +static int scan_date(const char* p, int* YY, int* MM, int* DD) +{ + int year, month, day; + year = scan_digits(p, 4); + month = (year >= 0 && p[4] == '-') ? scan_digits(p+5, 2) : -1; + day = (month >= 0 && p[7] == '-') ? scan_digits(p+8, 2) : -1; + if (YY) *YY = year; + if (MM) *MM = month; + if (DD) *DD = day; + return (year >= 0 && month >= 0 && day >= 0) ? 0 : -1; +} + +static int scan_time(const char* p, int* hh, int* mm, int* ss) +{ + int hour, minute, second; + hour = scan_digits(p, 2); + minute = (hour >= 0 && p[2] == ':') ? scan_digits(p+3, 2) : -1; + second = (minute >= 0 && p[5] == ':') ? scan_digits(p+6, 2) : -1; + if (hh) *hh = hour; + if (mm) *mm = minute; + if (ss) *ss = second; + return (hour >= 0 && minute >= 0 && second >= 0) ? 0 : -1; +} + + +static int scan_string(context_t* ctx, char* p, int lineno, int dotisspecial) +{ + char* orig = p; + if (0 == strncmp(p, "'''", 3)) { + p = strstr(p + 3, "'''"); + if (0 == p) { + return e_syntax(ctx, lineno, "unterminated triple-s-quote"); + } + + set_token(ctx, STRING, lineno, orig, p + 3 - orig); + return 0; + } + + if (0 == strncmp(p, "\"\"\"", 3)) { + int hexreq = 0; /* #hex required */ + int escape = 0; + int qcnt = 0; /* count quote */ + for (p += 3; *p && qcnt < 3; p++) { + if (escape) { + escape = 0; + if (strchr("btnfr\"\\", *p)) continue; + if (*p == 'u') { hexreq = 4; continue; } + if (*p == 'U') { hexreq = 8; continue; } + if (p[strspn(p, " \t\r")] == '\n') continue; /* allow for line ending backslash */ + return e_syntax(ctx, lineno, "bad escape char"); + } + if (hexreq) { + hexreq--; + if (strchr("0123456789ABCDEF", *p)) continue; + return e_syntax(ctx, lineno, "expect hex char"); + } + if (*p == '\\') { escape = 1; continue; } + qcnt = (*p == '"') ? qcnt + 1 : 0; + } + if (qcnt != 3) { + return e_syntax(ctx, lineno, "unterminated triple-quote"); + } + + set_token(ctx, STRING, lineno, orig, p - orig); + return 0; + } + + if ('\'' == *p) { + for (p++; *p && *p != '\n' && *p != '\''; p++); + if (*p != '\'') { + return e_syntax(ctx, lineno, "unterminated s-quote"); + } + + set_token(ctx, STRING, lineno, orig, p + 1 - orig); + return 0; + } + + if ('\"' == *p) { + int hexreq = 0; /* #hex required */ + int escape = 0; + for (p++; *p; p++) { + if (escape) { + escape = 0; + if (strchr("btnfr\"\\", *p)) continue; + if (*p == 'u') { hexreq = 4; continue; } + if (*p == 'U') { hexreq = 8; continue; } + return e_syntax(ctx, lineno, "bad escape char"); + } + if (hexreq) { + hexreq--; + if (strchr("0123456789ABCDEF", *p)) continue; + return e_syntax(ctx, lineno, "expect hex char"); + } + if (*p == '\\') { escape = 1; continue; } + if (*p == '\n') break; + if (*p == '"') break; + } + if (*p != '"') { + return e_syntax(ctx, lineno, "unterminated quote"); + } + + set_token(ctx, STRING, lineno, orig, p + 1 - orig); + return 0; + } + + /* check for timestamp without quotes */ + if (0 == scan_date(p, 0, 0, 0) || 0 == scan_time(p, 0, 0, 0)) { + // forward thru the timestamp + for ( ; strchr("0123456789.:+-T Z", toupper(*p)); p++); + // squeeze out any spaces at end of string + for ( ; p[-1] == ' '; p--); + // tokenize + set_token(ctx, STRING, lineno, orig, p - orig); + return 0; + } + + /* literals */ + for ( ; *p && *p != '\n'; p++) { + int ch = *p; + if (ch == '.' && dotisspecial) break; + if ('A' <= ch && ch <= 'Z') continue; + if ('a' <= ch && ch <= 'z') continue; + if (strchr("0123456789+-_.", ch)) continue; + break; + } + + set_token(ctx, STRING, lineno, orig, p - orig); + return 0; +} + + +static int next_token(context_t* ctx, int dotisspecial) +{ + int lineno = ctx->tok.lineno; + char* p = ctx->tok.ptr; + int i; + + /* eat this tok */ + for (i = 0; i < ctx->tok.len; i++) { + if (*p++ == '\n') + lineno++; + } + + /* make next tok */ + while (p < ctx->stop) { + /* skip comment. stop just before the \n. */ + if (*p == '#') { + for (p++; p < ctx->stop && *p != '\n'; p++); + continue; + } + + if (dotisspecial && *p == '.') { + set_token(ctx, DOT, lineno, p, 1); + return 0; + } + + switch (*p) { + case ',': set_token(ctx, COMMA, lineno, p, 1); return 0; + case '=': set_token(ctx, EQUAL, lineno, p, 1); return 0; + case '{': set_token(ctx, LBRACE, lineno, p, 1); return 0; + case '}': set_token(ctx, RBRACE, lineno, p, 1); return 0; + case '[': set_token(ctx, LBRACKET, lineno, p, 1); return 0; + case ']': set_token(ctx, RBRACKET, lineno, p, 1); return 0; + case '\n': set_token(ctx, NEWLINE, lineno, p, 1); return 0; + case '\r': case ' ': case '\t': + /* ignore white spaces */ + p++; + continue; + } + + return scan_string(ctx, p, lineno, dotisspecial); + } + + set_eof(ctx, lineno); + return 0; +} + + +const char* toml_key_in(const toml_table_t* tab, int keyidx) +{ + if (keyidx < tab->nkval) return tab->kval[keyidx]->key; + + keyidx -= tab->nkval; + if (keyidx < tab->narr) return tab->arr[keyidx]->key; + + keyidx -= tab->narr; + if (keyidx < tab->ntab) return tab->tab[keyidx]->key; + + return 0; +} + +toml_raw_t toml_raw_in(const toml_table_t* tab, const char* key) +{ + int i; + for (i = 0; i < tab->nkval; i++) { + if (0 == strcmp(key, tab->kval[i]->key)) + return tab->kval[i]->val; + } + return 0; +} + +toml_array_t* toml_array_in(const toml_table_t* tab, const char* key) +{ + int i; + for (i = 0; i < tab->narr; i++) { + if (0 == strcmp(key, tab->arr[i]->key)) + return tab->arr[i]; + } + return 0; +} + + +toml_table_t* toml_table_in(const toml_table_t* tab, const char* key) +{ + int i; + for (i = 0; i < tab->ntab; i++) { + if (0 == strcmp(key, tab->tab[i]->key)) + return tab->tab[i]; + } + return 0; +} + +toml_raw_t toml_raw_at(const toml_array_t* arr, int idx) +{ + if (arr->kind != 'v') + return 0; + if (! (0 <= idx && idx < arr->nelem)) + return 0; + return arr->u.val[idx]; +} + +char toml_array_kind(const toml_array_t* arr) +{ + return arr->kind; +} + +char toml_array_type(const toml_array_t* arr) +{ + if (arr->kind != 'v') + return 0; + + if (arr->nelem == 0) + return 0; + + return arr->type; +} + + +int toml_array_nelem(const toml_array_t* arr) +{ + return arr->nelem; +} + +const char* toml_array_key(const toml_array_t* arr) +{ + return arr ? arr->key : (const char*) NULL; +} + +int toml_table_nkval(const toml_table_t* tab) +{ + return tab->nkval; +} + +int toml_table_narr(const toml_table_t* tab) +{ + return tab->narr; +} + +int toml_table_ntab(const toml_table_t* tab) +{ + return tab->ntab; +} + +const char* toml_table_key(const toml_table_t* tab) +{ + return tab ? tab->key : (const char*) NULL; +} + +toml_array_t* toml_array_at(const toml_array_t* arr, int idx) +{ + if (arr->kind != 'a') + return 0; + if (! (0 <= idx && idx < arr->nelem)) + return 0; + return arr->u.arr[idx]; +} + +toml_table_t* toml_table_at(const toml_array_t* arr, int idx) +{ + if (arr->kind != 't') + return 0; + if (! (0 <= idx && idx < arr->nelem)) + return 0; + return arr->u.tab[idx]; +} + + +int toml_rtots(toml_raw_t src_, toml_timestamp_t* ret) +{ + if (! src_) return -1; + + const char* p = src_; + int must_parse_time = 0; + + memset(ret, 0, sizeof(*ret)); + + int* year = &ret->__buffer.year; + int* month = &ret->__buffer.month; + int* day = &ret->__buffer.day; + int* hour = &ret->__buffer.hour; + int* minute = &ret->__buffer.minute; + int* second = &ret->__buffer.second; + int* millisec = &ret->__buffer.millisec; + + /* parse date YYYY-MM-DD */ + if (0 == scan_date(p, year, month, day)) { + ret->year = year; + ret->month = month; + ret->day = day; + + p += 10; + if (*p) { + // parse the T or space separator + if (*p != 'T' && *p != ' ') return -1; + must_parse_time = 1; + p++; + } + } + + /* parse time HH:MM:SS */ + if (0 == scan_time(p, hour, minute, second)) { + ret->hour = hour; + ret->minute = minute; + ret->second = second; + + /* optionally, parse millisec */ + p += 8; + if (*p == '.') { + char* qq; + p++; + errno = 0; + *millisec = strtol(p, &qq, 0); + if (errno) { + return -1; + } + while (*millisec > 999) { + *millisec /= 10; + } + + ret->millisec = millisec; + p = qq; + } + + if (*p) { + /* parse and copy Z */ + char* z = ret->__buffer.z; + ret->z = z; + if (*p == 'Z' || *p == 'z') { + *z++ = 'Z'; p++; + *z = 0; + + } else if (*p == '+' || *p == '-') { + *z++ = *p++; + + if (! (isdigit(p[0]) && isdigit(p[1]))) return -1; + *z++ = *p++; + *z++ = *p++; + + if (*p == ':') { + *z++ = *p++; + + if (! (isdigit(p[0]) && isdigit(p[1]))) return -1; + *z++ = *p++; + *z++ = *p++; + } + + *z = 0; + } + } + } + if (*p != 0) + return -1; + + if (must_parse_time && !ret->hour) + return -1; + + return 0; +} + + +/* Raw to boolean */ +int toml_rtob(toml_raw_t src, int* ret_) +{ + if (!src) return -1; + int dummy; + int* ret = ret_ ? ret_ : &dummy; + + if (0 == strcmp(src, "true")) { + *ret = 1; + return 0; + } + if (0 == strcmp(src, "false")) { + *ret = 0; + return 0; + } + return -1; +} + + +/* Raw to integer */ +int toml_rtoi(toml_raw_t src, int64_t* ret_) +{ + if (!src) return -1; + + char buf[100]; + char* p = buf; + char* q = p + sizeof(buf); + const char* s = src; + int base = 0; + int64_t dummy; + int64_t* ret = ret_ ? ret_ : &dummy; + + + /* allow +/- */ + if (s[0] == '+' || s[0] == '-') + *p++ = *s++; + + /* disallow +_100 */ + if (s[0] == '_') + return -1; + + /* if 0 ... */ + if ('0' == s[0]) { + switch (s[1]) { + case 'x': base = 16; s += 2; break; + case 'o': base = 8; s += 2; break; + case 'b': base = 2; s += 2; break; + case '\0': return *ret = 0, 0; + default: + /* ensure no other digits after it */ + if (s[1]) return -1; + } + } + + /* just strip underscores and pass to strtoll */ + while (*s && p < q) { + int ch = *s++; + switch (ch) { + case '_': + // disallow '__' + if (s[0] == '_') return -1; + continue; /* skip _ */ + default: + break; + } + *p++ = ch; + } + if (*s || p == q) return -1; + + /* last char cannot be '_' */ + if (s[-1] == '_') return -1; + + /* cap with NUL */ + *p = 0; + + /* Run strtoll on buf to get the integer */ + char* endp; + errno = 0; + *ret = strtoll(buf, &endp, base); + return (errno || *endp) ? -1 : 0; +} + + +int toml_rtod_ex(toml_raw_t src, double* ret_, char* buf, int buflen) +{ + if (!src) return -1; + + char* p = buf; + char* q = p + buflen; + const char* s = src; + double dummy; + double* ret = ret_ ? ret_ : &dummy; + + + /* allow +/- */ + if (s[0] == '+' || s[0] == '-') + *p++ = *s++; + + /* disallow +_1.00 */ + if (s[0] == '_') + return -1; + + /* disallow +.99 */ + if (s[0] == '.') + return -1; + + /* zero must be followed by . or 'e', or NUL */ + if (s[0] == '0' && s[1] && !strchr("eE.", s[1])) + return -1; + + /* just strip underscores and pass to strtod */ + while (*s && p < q) { + int ch = *s++; + switch (ch) { + case '.': + if (s[-2] == '_') return -1; + if (s[0] == '_') return -1; + break; + case '_': + // disallow '__' + if (s[0] == '_') return -1; + continue; /* skip _ */ + default: + break; + } + *p++ = ch; + } + if (*s || p == q) return -1; /* reached end of string or buffer is full? */ + + /* last char cannot be '_' */ + if (s[-1] == '_') return -1; + + if (p != buf && p[-1] == '.') + return -1; /* no trailing zero */ + + /* cap with NUL */ + *p = 0; + + /* Run strtod on buf to get the value */ + char* endp; + errno = 0; + *ret = strtod(buf, &endp); + return (errno || *endp) ? -1 : 0; +} + +int toml_rtod(toml_raw_t src, double* ret_) +{ + char buf[100]; + return toml_rtod_ex(src, ret_, buf, sizeof(buf)); +} + + + + +int toml_rtos(toml_raw_t src, char** ret) +{ + int multiline = 0; + const char* sp; + const char* sq; + + *ret = 0; + if (!src) return -1; + + int qchar = src[0]; + int srclen = strlen(src); + if (! (qchar == '\'' || qchar == '"')) { + return -1; + } + + // triple quotes? + if (qchar == src[1] && qchar == src[2]) { + multiline = 1; + sp = src + 3; + sq = src + srclen - 3; + /* last 3 chars in src must be qchar */ + if (! (sp <= sq && sq[0] == qchar && sq[1] == qchar && sq[2] == qchar)) + return -1; + + /* skip new line immediate after qchar */ + if (sp[0] == '\n') + sp++; + else if (sp[0] == '\r' && sp[1] == '\n') + sp += 2; + + } else { + sp = src + 1; + sq = src + srclen - 1; + /* last char in src must be qchar */ + if (! (sp <= sq && *sq == qchar)) + return -1; + } + + if (qchar == '\'') { + *ret = norm_lit_str(sp, sq - sp, + multiline, + 0, 0); + } else { + *ret = norm_basic_str(sp, sq - sp, + multiline, + 0, 0); + } + + return *ret ? 0 : -1; +} + + +toml_datum_t toml_string_at(const toml_array_t* arr, int idx) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_at(arr, idx); + if (raw) { + ret.ok = (0 == toml_rtos(raw, &ret.u.s)); + } + return ret; +} + +toml_datum_t toml_bool_at(const toml_array_t* arr, int idx) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_at(arr, idx); + if (raw) { + ret.ok = (0 == toml_rtob(raw, &ret.u.b)); + } + return ret; +} + +toml_datum_t toml_int_at(const toml_array_t* arr, int idx) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_at(arr, idx); + if (raw) { + ret.ok = (0 == toml_rtoi(raw, &ret.u.i)); + } + return ret; +} + +toml_datum_t toml_double_at(const toml_array_t* arr, int idx) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_at(arr, idx); + if (raw) { + ret.ok = (0 == toml_rtod(raw, &ret.u.d)); + } + return ret; +} + +toml_datum_t toml_timestamp_at(const toml_array_t* arr, int idx) +{ + toml_timestamp_t ts; + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_at(arr, idx); + if (raw) { + ret.ok = (0 == toml_rtots(raw, &ts)); + if (ret.ok) { + ret.ok = !!(ret.u.ts = malloc(sizeof(*ret.u.ts))); + if (ret.ok) { + *ret.u.ts = ts; + } + } + } + return ret; +} + +toml_datum_t toml_string_in(const toml_table_t* arr, const char* key) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_in(arr, key); + if (raw) { + ret.ok = (0 == toml_rtos(raw, &ret.u.s)); + } + return ret; +} + +toml_datum_t toml_bool_in(const toml_table_t* arr, const char* key) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_in(arr, key); + if (raw) { + ret.ok = (0 == toml_rtob(raw, &ret.u.b)); + } + return ret; +} + +toml_datum_t toml_int_in(const toml_table_t* arr, const char* key) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_in(arr, key); + if (raw) { + ret.ok = (0 == toml_rtoi(raw, &ret.u.i)); + } + return ret; +} + +toml_datum_t toml_double_in(const toml_table_t* arr, const char* key) +{ + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_in(arr, key); + if (raw) { + ret.ok = (0 == toml_rtod(raw, &ret.u.d)); + } + return ret; +} + +toml_datum_t toml_timestamp_in(const toml_table_t* arr, const char* key) +{ + toml_timestamp_t ts; + toml_datum_t ret; + memset(&ret, 0, sizeof(ret)); + toml_raw_t raw = toml_raw_in(arr, key); + if (raw) { + ret.ok = (0 == toml_rtots(raw, &ts)); + if (ret.ok) { + ret.ok = !!(ret.u.ts = malloc(sizeof(*ret.u.ts))); + if (ret.ok) { + *ret.u.ts = ts; + } + } + } + return ret; +} diff --git a/vendor/toml.h b/vendor/toml.h new file mode 100644 index 0000000..19f6f64 --- /dev/null +++ b/vendor/toml.h @@ -0,0 +1,175 @@ +/* + MIT License + + Copyright (c) 2017 - 2019 CK Tan + https://github.com/cktan/tomlc99 + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. +*/ +#ifndef TOML_H +#define TOML_H + + +#include +#include + + +#ifdef __cplusplus +#define TOML_EXTERN extern "C" +#else +#define TOML_EXTERN extern +#endif + +typedef struct toml_timestamp_t toml_timestamp_t; +typedef struct toml_table_t toml_table_t; +typedef struct toml_array_t toml_array_t; +typedef struct toml_datum_t toml_datum_t; + +/* Parse a file. Return a table on success, or 0 otherwise. + * Caller must toml_free(the-return-value) after use. + */ +TOML_EXTERN toml_table_t* toml_parse_file(FILE* fp, + char* errbuf, + int errbufsz); + +/* Parse a string containing the full config. + * Return a table on success, or 0 otherwise. + * Caller must toml_free(the-return-value) after use. + */ +TOML_EXTERN toml_table_t* toml_parse(char* conf, /* NUL terminated, please. */ + char* errbuf, + int errbufsz); + +/* Free the table returned by toml_parse() or toml_parse_file(). Once + * this function is called, any handles accessed through this tab + * directly or indirectly are no longer valid. + */ +TOML_EXTERN void toml_free(toml_table_t* tab); + + +/* Timestamp types. The year, month, day, hour, minute, second, z + * fields may be NULL if they are not relevant. e.g. In a DATE + * type, the hour, minute, second and z fields will be NULLs. + */ +struct toml_timestamp_t { + struct { /* internal. do not use. */ + int year, month, day; + int hour, minute, second, millisec; + char z[10]; + } __buffer; + int *year, *month, *day; + int *hour, *minute, *second, *millisec; + char* z; +}; + + +/*----------------------------------------------------------------- + * Enhanced access methods + */ +struct toml_datum_t { + int ok; + union { + toml_timestamp_t* ts; /* ts must be freed after use */ + char* s; /* string value. s must be freed after use */ + int b; /* bool value */ + int64_t i; /* int value */ + double d; /* double value */ + } u; +}; + +/* on arrays: */ +/* ... retrieve size of array. */ +TOML_EXTERN int toml_array_nelem(const toml_array_t* arr); +/* ... retrieve values using index. */ +TOML_EXTERN toml_datum_t toml_string_at(const toml_array_t* arr, int idx); +TOML_EXTERN toml_datum_t toml_bool_at(const toml_array_t* arr, int idx); +TOML_EXTERN toml_datum_t toml_int_at(const toml_array_t* arr, int idx); +TOML_EXTERN toml_datum_t toml_double_at(const toml_array_t* arr, int idx); +TOML_EXTERN toml_datum_t toml_timestamp_at(const toml_array_t* arr, int idx); +/* ... retrieve array or table using index. */ +TOML_EXTERN toml_array_t* toml_array_at(const toml_array_t* arr, int idx); +TOML_EXTERN toml_table_t* toml_table_at(const toml_array_t* arr, int idx); + +/* on tables: */ +/* ... retrieve the key in table at keyidx. Return 0 if out of range. */ +TOML_EXTERN const char* toml_key_in(const toml_table_t* tab, int keyidx); +/* ... retrieve values using key. */ +TOML_EXTERN toml_datum_t toml_string_in(const toml_table_t* arr, const char* key); +TOML_EXTERN toml_datum_t toml_bool_in(const toml_table_t* arr, const char* key); +TOML_EXTERN toml_datum_t toml_int_in(const toml_table_t* arr, const char* key); +TOML_EXTERN toml_datum_t toml_double_in(const toml_table_t* arr, const char* key); +TOML_EXTERN toml_datum_t toml_timestamp_in(const toml_table_t* arr, const char* key); +/* .. retrieve array or table using key. */ +TOML_EXTERN toml_array_t* toml_array_in(const toml_table_t* tab, + const char* key); +TOML_EXTERN toml_table_t* toml_table_in(const toml_table_t* tab, + const char* key); + +/*----------------------------------------------------------------- + * lesser used + */ +/* Return the array kind: 't'able, 'a'rray, 'v'alue */ +TOML_EXTERN char toml_array_kind(const toml_array_t* arr); + +/* For array kind 'v'alue, return the type of values + i:int, d:double, b:bool, s:string, t:time, D:date, T:timestamp + 0 if unknown +*/ +TOML_EXTERN char toml_array_type(const toml_array_t* arr); + +/* Return the key of an array */ +TOML_EXTERN const char* toml_array_key(const toml_array_t* arr); + +/* Return the number of key-values in a table */ +TOML_EXTERN int toml_table_nkval(const toml_table_t* tab); + +/* Return the number of arrays in a table */ +TOML_EXTERN int toml_table_narr(const toml_table_t* tab); + +/* Return the number of sub-tables in a table */ +TOML_EXTERN int toml_table_ntab(const toml_table_t* tab); + +/* Return the key of a table*/ +TOML_EXTERN const char* toml_table_key(const toml_table_t* tab); + +/*-------------------------------------------------------------- + * misc + */ +TOML_EXTERN int toml_utf8_to_ucs(const char* orig, int len, int64_t* ret); +TOML_EXTERN int toml_ucs_to_utf8(int64_t code, char buf[6]); +TOML_EXTERN void toml_set_memutil(void* (*xxmalloc)(size_t), + void (*xxfree)(void*)); + + +/*-------------------------------------------------------------- + * deprecated + */ +/* A raw value, must be processed by toml_rto* before using. */ +typedef const char* toml_raw_t; +TOML_EXTERN toml_raw_t toml_raw_in(const toml_table_t* tab, const char* key); +TOML_EXTERN toml_raw_t toml_raw_at(const toml_array_t* arr, int idx); +TOML_EXTERN int toml_rtos(toml_raw_t s, char** ret); +TOML_EXTERN int toml_rtob(toml_raw_t s, int* ret); +TOML_EXTERN int toml_rtoi(toml_raw_t s, int64_t* ret); +TOML_EXTERN int toml_rtod(toml_raw_t s, double* ret); +TOML_EXTERN int toml_rtod_ex(toml_raw_t s, double* ret, char* buf, int buflen); +TOML_EXTERN int toml_rtots(toml_raw_t s, toml_timestamp_t* ret); + + +#endif /* TOML_H */