diff --git a/include/package_info.h b/include/package_info.h index d71386e..b1388a2 100644 --- a/include/package_info.h +++ b/include/package_info.h @@ -33,7 +33,7 @@ typedef struct pkg_info { } PkgInfo; PkgInfo *package_info_init(); -int package_info_parse(PkgInfo *pkg_info, char *pkg_info_str); +void package_info_parse(PkgInfo *pkg_info, char *pkg_info_str); void package_info_free(PkgInfo *pkg_info); #endif diff --git a/src/package/package_info.c b/src/package/package_info.c index 1202485..5e1986d 100644 --- a/src/package/package_info.c +++ b/src/package/package_info.c @@ -2,6 +2,31 @@ #include "package_info.h" +#define PKG_INFO_STRING(key_ptr, field) if ((value_ptr = strstr(value_ptr, key_ptr)) != NULL) { \ + value_ptr += strlen(key_ptr);\ + tail_ptr = strchr(value_ptr, '\n');\ + tail_ptr[0] = '\0'; \ + pkg_info->field = strdup(value_ptr); \ + tail_ptr[0] = '\n'; \ +} value_ptr = tail_ptr; + +#define PKG_INFO_INT(key_ptr, field) value_ptr = strstr(value_ptr, key_ptr) + strlen(key_ptr);\ + tail_ptr = strchr(value_ptr, '\n');\ + tail_ptr[0] = '\0'; \ + pkg_info->field = atoi(value_ptr); \ + tail_ptr[0] = '\n'; \ + value_ptr = tail_ptr; + +#define PKG_INFO_ARRAY(key_ptr, field) while((value_ptr = strstr(value_ptr, key_ptr)) != NULL){ \ + value_ptr = value_ptr + strlen(key_ptr);\ + tail_ptr = strchr(value_ptr, '\n'); \ + tail_ptr[0] = '\0'; \ + if(pkg_info->field == NULL) { pkg_info->field = dynarray_init(4); } \ + dynarray_add(pkg_info->field, value_ptr); \ + tail_ptr[0] = '\n'; \ + value_ptr = tail_ptr;\ +} value_ptr = tail_ptr; + PkgInfo *package_info_init() { return calloc(1, sizeof(PkgInfo)); } @@ -29,111 +54,26 @@ void package_info_free(PkgInfo *pkg_info) { free(pkg_info); } -/** - * Advance the pointer until all spaces are skipped. - */ -static inline char *trim_spaces_front(char *ptr) { - while (ptr[0] == ' ') { - ptr++; - } +void package_info_parse(PkgInfo *pkg_info, char *pkg_info_str) { + char *value_ptr = pkg_info_str, *tail_ptr; + + PKG_INFO_STRING("\npkgname = ", name); + PKG_INFO_STRING("\npkgbase = ", base); + PKG_INFO_STRING("\npkgver = ", version); + PKG_INFO_STRING("\npkgdesc = ", description); + PKG_INFO_STRING("\nurl = ", url); + PKG_INFO_INT("\nbuilddate = ", build_date); + PKG_INFO_STRING("\npackager = ", packager); + PKG_INFO_INT("\nsize = ", size); + PKG_INFO_STRING("\narch = ", arch); + PKG_INFO_ARRAY("\nlicense = ", licenses); + PKG_INFO_ARRAY("\nreplaces = ", replaces); + PKG_INFO_ARRAY("\ngroup = ", groups); + PKG_INFO_ARRAY("\nconflict = ", conflicts); + PKG_INFO_ARRAY("\nprovides = ", provides); + PKG_INFO_ARRAY("\ndepend = ", depends); + PKG_INFO_ARRAY("\noptdepend = ", optdepends); + PKG_INFO_ARRAY("\nmakedepend = ", makedepends); + PKG_INFO_ARRAY("\ncheckdepend = ", checkdepends); - return ptr; -} - -/** - * Given a string pointer in the middle of a string, move over all spaces in the - * given direction. The final space is replaced with a NULL-byte. - */ -static inline void trim_spaces_back(char *ptr) { - if (ptr[0] != ' ') { - return; - } - - while (ptr[-1] == ' ') { - ptr--; - } - - ptr[0] = '\0'; -} - -#define PKG_INFO_STRING(key, field) if (strcmp(key_ptr, key) == 0) { pkg_info->field = strdup(value_ptr); goto advance; } -#define PKG_INFO_INT(key, field) if (strcmp(key_ptr, key) == 0) { pkg_info->field = atoi(value_ptr); goto advance; } -#define PKG_INFO_ARRAY(key, field) if (strcmp(key_ptr, key) == 0) { \ - if (pkg_info->field == NULL) { pkg_info->field = dynarray_init(4); } \ - dynarray_add(pkg_info->field, value_ptr); goto advance; \ -} - -int package_info_parse(PkgInfo *pkg_info, char *pkg_info_str) { - char *offset_ptr, *equals_ptr, *key_ptr, *value_ptr; - - bool end = false; - - // Iterate over all lines in file - while (!end) { - // This pointer will always point to the final character of the - // current line, be it the position of a newline or the NULL byte at - // the end of the entire string - offset_ptr = strchr(pkg_info_str, '\n'); - - // We replace the newline with a NULL byte. Now we know the line runs - // until the next NULL byte. - if (offset_ptr != NULL) { - offset_ptr[0] = '\0'; - } else { - // Advance pointer to the NULL byte of the string - offset_ptr = pkg_info_str + 1; - - while (*offset_ptr != '\0') { - offset_ptr++; - } - - end = true; - } - - // Skip comment lines - if (pkg_info_str[0] == '#') { - goto advance; - } - - equals_ptr = strchr(pkg_info_str, '='); - - // If a line doesn't contain an equals sign, the file is invalid - if (equals_ptr == NULL) { - return 1; - } - - // Trim whitespace from key - key_ptr = trim_spaces_front(pkg_info_str); - trim_spaces_back(equals_ptr - 1); - - // Trim spaces from value - value_ptr = trim_spaces_front(equals_ptr + 1); - trim_spaces_back(offset_ptr - 1); - - // Match key - PKG_INFO_STRING("pkgname", name); - PKG_INFO_STRING("pkgbase", base); - PKG_INFO_STRING("pkgver", version); - PKG_INFO_STRING("pkgdesc", description); - PKG_INFO_INT("size", size); - PKG_INFO_STRING("url", url); - PKG_INFO_STRING("arch", arch); - PKG_INFO_INT("builddate", build_date); - PKG_INFO_STRING("packager", packager); - PKG_INFO_STRING("pgpsig", pgpsig); - PKG_INFO_INT("pgpsigsize", pgpsigsize); - PKG_INFO_ARRAY("group", groups); - PKG_INFO_ARRAY("license", licenses); - PKG_INFO_ARRAY("replaces", replaces); - PKG_INFO_ARRAY("depend", depends); - PKG_INFO_ARRAY("optdepend", optdepends); - PKG_INFO_ARRAY("makedepend", makedepends); - PKG_INFO_ARRAY("checkdepend", checkdepends); - -advance: - pkg_info_str = offset_ptr + 1; - continue; - } - - return 0; }