diff options
| -rw-r--r-- | README.md | 18 | ||||
| -rw-r--r-- | config.c | 84 | ||||
| -rw-r--r-- | ini.c | 328 | ||||
| -rw-r--r-- | ini.h | 189 |
4 files changed, 614 insertions, 5 deletions
@@ -15,6 +15,21 @@ Usage: just like dmenu ## FAQ Q: What is an ENU? +## Configuration +Create your config file at `XDG_CONFIG_HOME/swenu/conf.ini` or `HOME/.config/swenu/conf.ini`. +Example config file: +```ini +fancy_scroll = false +min_width = 500 +font_size = 16 + +[colors] +text_color = (0.85, 0.85, 0.85, 1.0) +highlight_color = (0.1, 0.3, 0.7, 1.0) +background_color = (0.1, 0.1, 0.1, 1.0) +cursor_color = (0.9, 0.9, 0.9, 0.5) +``` + ## Todo - - [x] "selection" - [x] figure out whats going on with stderr and exit code @@ -28,9 +43,10 @@ Q: What is an ENU? - [x] emacs keybindings - [x] "prompt" - [x] fuzzy filter -- [ ] config file +- [x] config file - [ ] scrolling in input - [ ] unicode + text shaping Stretch: +- [ ] clean up the code (src folder, rename some files) - [ ] input fluff (icons, descriptions, output names) @@ -1,35 +1,111 @@ #include "config.h" +#include "ini.h" +#include <stdio.h> #include <stdlib.h> +#include <string.h> +#include <regex.h> config_t config = { + // default config .fancy_scroll = false, .min_width = 500, .font_size = 16, - // colors .text_color = {0.85, 0.85, 0.85, 1.0}, .highlight_color = {0.1, 0.3, 0.7, 1.0}, .background_color = {0.1, 0.1, 0.1, 1.0}, .cursor_color = {0.9, 0.9, 0.9, 0.5} }; - +// get config file +const char* conf_file_name = "/swenu/conf.ini"; char* get_conf_file() { // get from xdg config home const char* xdg = getenv("XDG_CONFIG_HOME"); if (xdg && *xdg) { + char* conf_file = NULL; + asprintf(&conf_file, "%s%s", xdg, conf_file_name); + return conf_file; } // get from home const char* home = getenv("HOME"); if (home && *home) { + char* conf_file = NULL; + asprintf(&conf_file, "%s/.config%s", home, conf_file_name); + return conf_file; } return NULL; } +// bool parse helper +bool parse_bool(const char* value) { + if (strcmp(value, "true") == 0 || strcmp(value, "t") == 0 || strcmp(value, "True") == 0 || strcmp(value, "T") == 0 || strcmp(value, "TRUE") == 0 || strcmp(value, "yes") == 0) { + return true; + } else { + return false; + } +} + +// color parse helper +regex_t color_regex; +const char *color_regex_pattern = "^\\([[:space:]]*([[:digit:].]*)[[:space:]]*,[[:space:]]*([[:digit:].]*)[[:space:]]*,[[:space:]]*([[:digit:].]*)[[:space:]]*,[[:space:]]*([[:digit:].]*)[[:space:]]*\\)$"; // this is fucking evil +void parse_color(const char* value, color_t* color) { + regmatch_t matches[5]; // full match + 4 capture groups + if (regexec(&color_regex, value, 5, matches, 0) == 0) { + for (int i = 1; i <= 4; i++) { + size_t len = matches[i].rm_eo - matches[i].rm_so; + char match[len + 1]; + memcpy(match, value + matches[i].rm_so, len); + match[len] = '\0'; + *((float*)color + i - 1) = atof(match); + } + } +} + +static int our_ini_handler(void* user, const char* section, const char* name, + const char* value) +{ + config_t* config = (config_t*)user; + + #define MATCH(s, n) strcmp(section, s) == 0 && strcmp(name, n) == 0 + if (MATCH("", "fancy_scroll")) { + config->fancy_scroll = parse_bool(value); + } else if (MATCH("", "min_width")) { + config->min_width = atoi(value); + } else if (MATCH("", "font_size")) { + config->font_size = atoi(value); + } else if (MATCH("colors", "text_color")) { + parse_color(value, &config->text_color); + } else if (MATCH("colors", "highlight_color")) { + parse_color(value, &config->highlight_color); + } else if (MATCH("colors", "background_color")) { + parse_color(value, &config->background_color); + } else if (MATCH("colors", "cursor_color")) { + parse_color(value, &config->cursor_color); + } else { + return 0; /* unknown section/name, error */ + } + return 1; +} + void init_conf() { - /* const char* conf_dir = get_conf_file(); */ + // compile color regex + if (regcomp(&color_regex, color_regex_pattern, REG_EXTENDED) != 0) { + fprintf(stderr, "Color regex compile failed\n"); + } + + // get config dir + char* conf_dir = get_conf_file(); + if (!conf_dir) return; + + // parse config file + int ini_res = ini_parse(conf_dir, our_ini_handler, &config); + if (ini_res > 0) { + fprintf(stderr, "Error parsing config file (%s), on line %d\n", conf_dir, ini_res); + } - /* free(conf_dir); */ + free(conf_dir); + regfree(&color_regex); } @@ -0,0 +1,328 @@ +/* inih -- simple .INI file parser + +SPDX-License-Identifier: BSD-3-Clause + +Copyright (C) 2009-2025, Ben Hoyt + +inih is released under the New BSD license (see LICENSE.txt). Go to the project +home page for more info: + +https://github.com/benhoyt/inih + +*/ + +#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) +#define _CRT_SECURE_NO_WARNINGS +#endif + +#include <stdio.h> +#include <ctype.h> +#include <string.h> + +#include "ini.h" + +#if !INI_USE_STACK +#if INI_CUSTOM_ALLOCATOR +#include <stddef.h> +void* ini_malloc(size_t size); +void ini_free(void* ptr); +void* ini_realloc(void* ptr, size_t size); +#else +#include <stdlib.h> +#define ini_malloc malloc +#define ini_free free +#define ini_realloc realloc +#endif +#endif + +#define MAX_SECTION 50 +#define MAX_NAME 50 + +/* Used by ini_parse_string() to keep track of string parsing state. */ +typedef struct { + const char* ptr; + size_t num_left; +} ini_parse_string_ctx; + +/* Strip whitespace chars off end of given string, in place. end must be a + pointer to the NUL terminator at the end of the string. Return s. */ +static char* ini_rstrip(char* s, char* end) +{ + while (end > s && isspace((unsigned char)(*--end))) + *end = '\0'; + return s; +} + +/* Return pointer to first non-whitespace char in given string. */ +static char* ini_lskip(const char* s) +{ + while (*s && isspace((unsigned char)(*s))) + s++; + return (char*)s; +} + +/* Return pointer to first char (of chars) or inline comment in given string, + or pointer to NUL at end of string if neither found. Inline comment must + be prefixed by a whitespace character to register as a comment. */ +static char* ini_find_chars_or_comment(const char* s, const char* chars) +{ +#if INI_ALLOW_INLINE_COMMENTS + int was_space = 0; + while (*s && (!chars || !strchr(chars, *s)) && + !(was_space && strchr(INI_INLINE_COMMENT_PREFIXES, *s))) { + was_space = isspace((unsigned char)(*s)); + s++; + } +#else + while (*s && (!chars || !strchr(chars, *s))) { + s++; + } +#endif + return (char*)s; +} + +/* Similar to strncpy, but ensures dest (size bytes) is + NUL-terminated, and doesn't pad with NULs. */ +static char* ini_strncpy0(char* dest, const char* src, size_t size) +{ + /* Could use strncpy internally, but it causes gcc warnings (see issue #91) */ + size_t i; + for (i = 0; i < size - 1 && src[i]; i++) + dest[i] = src[i]; + dest[i] = '\0'; + return dest; +} + +/* See documentation in header file. */ +int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler, + void* user) +{ + /* Uses a fair bit of stack (use heap instead if you need to) */ +#if INI_USE_STACK + char line[INI_MAX_LINE]; + size_t max_line = INI_MAX_LINE; +#else + char* line; + size_t max_line = INI_INITIAL_ALLOC; +#endif +#if INI_ALLOW_REALLOC && !INI_USE_STACK + char* new_line; +#endif + char section[MAX_SECTION] = ""; +#if INI_ALLOW_MULTILINE + char prev_name[MAX_NAME] = ""; +#endif + + size_t offset; + char* start; + char* end; + char* name; + char* value; + int lineno = 0; + int error = 0; + char abyss[16]; /* Used to consume input when a line is too long. */ + size_t abyss_len; + +#if !INI_USE_STACK + line = (char*)ini_malloc(INI_INITIAL_ALLOC); + if (!line) { + return -2; + } +#endif + +#if INI_HANDLER_LINENO +#define HANDLER(u, s, n, v) handler(u, s, n, v, lineno) +#else +#define HANDLER(u, s, n, v) handler(u, s, n, v) +#endif + + /* Scan through stream line by line */ + while (reader(line, (int)max_line, stream) != NULL) { + offset = strlen(line); + +#if INI_ALLOW_REALLOC && !INI_USE_STACK + while (max_line < INI_MAX_LINE && + offset == max_line - 1 && line[offset - 1] != '\n') { + max_line *= 2; + if (max_line > INI_MAX_LINE) + max_line = INI_MAX_LINE; + new_line = ini_realloc(line, max_line); + if (!new_line) { + ini_free(line); + return -2; + } + line = new_line; + if (reader(line + offset, (int)(max_line - offset), stream) == NULL) + break; + offset += strlen(line + offset); + } +#endif + + lineno++; + + /* If line exceeded INI_MAX_LINE bytes, discard till end of line. */ + if (offset == max_line - 1 && line[offset - 1] != '\n') { + while (reader(abyss, sizeof(abyss), stream) != NULL) { + if (!error) + error = lineno; + abyss_len = strlen(abyss); + if (abyss_len > 0 && abyss[abyss_len - 1] == '\n') + break; + } + } + + start = line; +#if INI_ALLOW_BOM + if (lineno == 1 && (unsigned char)start[0] == 0xEF && + (unsigned char)start[1] == 0xBB && + (unsigned char)start[2] == 0xBF) { + start += 3; + } +#endif + start = ini_rstrip(ini_lskip(start), line + offset); + + if (strchr(INI_START_COMMENT_PREFIXES, *start)) { + /* Start-of-line comment */ + } +#if INI_ALLOW_MULTILINE + else if (*prev_name && *start && start > line) { +#if INI_ALLOW_INLINE_COMMENTS + end = ini_find_chars_or_comment(start, NULL); + *end = '\0'; + ini_rstrip(start, end); +#endif + /* Non-blank line with leading whitespace, treat as continuation + of previous name's value (as per Python configparser). */ + if (!HANDLER(user, section, prev_name, start) && !error) + error = lineno; + } +#endif + else if (*start == '[') { + /* A "[section]" line */ + end = ini_find_chars_or_comment(start + 1, "]"); + if (*end == ']') { + *end = '\0'; + ini_strncpy0(section, start + 1, sizeof(section)); +#if INI_ALLOW_MULTILINE + *prev_name = '\0'; +#endif +#if INI_CALL_HANDLER_ON_NEW_SECTION + if (!HANDLER(user, section, NULL, NULL) && !error) + error = lineno; +#endif + } + else if (!error) { + /* No ']' found on section line */ + error = lineno; + } + } + else if (*start) { + /* Not a comment, must be a name[=:]value pair */ + end = ini_find_chars_or_comment(start, "=:"); + if (*end == '=' || *end == ':') { + *end = '\0'; + name = ini_rstrip(start, end); + value = end + 1; +#if INI_ALLOW_INLINE_COMMENTS + end = ini_find_chars_or_comment(value, NULL); + *end = '\0'; +#endif + value = ini_lskip(value); + ini_rstrip(value, end); + +#if INI_ALLOW_MULTILINE + ini_strncpy0(prev_name, name, sizeof(prev_name)); +#endif + /* Valid name[=:]value pair found, call handler */ + if (!HANDLER(user, section, name, value) && !error) + error = lineno; + } + else { + /* No '=' or ':' found on name[=:]value line */ +#if INI_ALLOW_NO_VALUE + *end = '\0'; + name = ini_rstrip(start, end); + if (!HANDLER(user, section, name, NULL) && !error) + error = lineno; +#else + if (!error) + error = lineno; +#endif + } + } + +#if INI_STOP_ON_FIRST_ERROR + if (error) + break; +#endif + } + +#if !INI_USE_STACK + ini_free(line); +#endif + + return error; +} + +/* See documentation in header file. */ +int ini_parse_file(FILE* file, ini_handler handler, void* user) +{ + return ini_parse_stream((ini_reader)fgets, file, handler, user); +} + +/* See documentation in header file. */ +int ini_parse(const char* filename, ini_handler handler, void* user) +{ + FILE* file; + int error; + + file = fopen(filename, "r"); + if (!file) + return -1; + error = ini_parse_file(file, handler, user); + fclose(file); + return error; +} + +/* An ini_reader function to read the next line from a string buffer. This + is the fgets() equivalent used by ini_parse_string(). */ +static char* ini_reader_string(char* str, int num, void* stream) { + ini_parse_string_ctx* ctx = (ini_parse_string_ctx*)stream; + const char* ctx_ptr = ctx->ptr; + size_t ctx_num_left = ctx->num_left; + char* strp = str; + char c; + + if (ctx_num_left == 0 || num < 2) + return NULL; + + while (num > 1 && ctx_num_left != 0) { + c = *ctx_ptr++; + ctx_num_left--; + *strp++ = c; + if (c == '\n') + break; + num--; + } + + *strp = '\0'; + ctx->ptr = ctx_ptr; + ctx->num_left = ctx_num_left; + return str; +} + +/* See documentation in header file. */ +int ini_parse_string(const char* string, ini_handler handler, void* user) { + return ini_parse_string_length(string, strlen(string), handler, user); +} + +/* See documentation in header file. */ +int ini_parse_string_length(const char* string, size_t length, + ini_handler handler, void* user) { + ini_parse_string_ctx ctx; + + ctx.ptr = string; + ctx.num_left = length; + return ini_parse_stream((ini_reader)ini_reader_string, &ctx, handler, + user); +} @@ -0,0 +1,189 @@ +/* inih -- simple .INI file parser + +SPDX-License-Identifier: BSD-3-Clause + +Copyright (C) 2009-2025, Ben Hoyt + +inih is released under the New BSD license (see LICENSE.txt). Go to the project +home page for more info: + +https://github.com/benhoyt/inih + +*/ + +#ifndef INI_H +#define INI_H + +/* Make this header file easier to include in C++ code */ +#ifdef __cplusplus +extern "C" { +#endif + +#include <stdio.h> + +/* Nonzero if ini_handler callback should accept lineno parameter. */ +#ifndef INI_HANDLER_LINENO +#define INI_HANDLER_LINENO 0 +#endif + +/* Visibility symbols, required for Windows DLLs */ +#ifndef INI_API +#if defined _WIN32 || defined __CYGWIN__ +# ifdef INI_SHARED_LIB +# ifdef INI_SHARED_LIB_BUILDING +# define INI_API __declspec(dllexport) +# else +# define INI_API __declspec(dllimport) +# endif +# else +# define INI_API +# endif +#else +# if defined(__GNUC__) && __GNUC__ >= 4 +# define INI_API __attribute__ ((visibility ("default"))) +# else +# define INI_API +# endif +#endif +#endif + +/* Typedef for prototype of handler function. + + Note that even though the value parameter has type "const char*", the user + may cast to "char*" and modify its content, as the value is not used again + after the call to ini_handler. This is not true of section and name -- + those must not be modified. +*/ +#if INI_HANDLER_LINENO +typedef int (*ini_handler)(void* user, const char* section, + const char* name, const char* value, + int lineno); +#else +typedef int (*ini_handler)(void* user, const char* section, + const char* name, const char* value); +#endif + +/* Typedef for prototype of fgets-style reader function. */ +typedef char* (*ini_reader)(char* str, int num, void* stream); + +/* Parse given INI-style file. May have [section]s, name=value pairs + (whitespace stripped), and comments starting with ';' (semicolon). Section + is "" if name=value pair parsed before any section heading. name:value + pairs are also supported as a concession to Python's configparser. + + For each name=value pair parsed, call handler function with given user + pointer as well as section, name, and value (data only valid for duration + of handler call). Handler should return nonzero on success, zero on error. + + Returns 0 on success, line number of first error on parse error (doesn't + stop on first error), -1 on file open error, or -2 on memory allocation + error (only when INI_USE_STACK is zero). +*/ +INI_API int ini_parse(const char* filename, ini_handler handler, void* user); + +/* Same as ini_parse(), but takes a FILE* instead of filename. This doesn't + close the file when it's finished -- the caller must do that. */ +INI_API int ini_parse_file(FILE* file, ini_handler handler, void* user); + +/* Same as ini_parse(), but takes an ini_reader function pointer instead of + filename. Used for implementing custom or string-based I/O (see also + ini_parse_string). */ +INI_API int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler, + void* user); + +/* Same as ini_parse(), but takes a zero-terminated string with the INI data + instead of a file. Useful for parsing INI data from a network socket or + which is already in memory. */ +INI_API int ini_parse_string(const char* string, ini_handler handler, void* user); + +/* Same as ini_parse_string(), but takes a string and its length, avoiding + strlen(). Useful for parsing INI data from a network socket or which is + already in memory, or interfacing with C++ std::string_view. */ +INI_API int ini_parse_string_length(const char* string, size_t length, ini_handler handler, void* user); + +/* Nonzero to allow multi-line value parsing, in the style of Python's + configparser. If allowed, ini_parse() will call the handler with the same + name for each subsequent line parsed. */ +#ifndef INI_ALLOW_MULTILINE +#define INI_ALLOW_MULTILINE 1 +#endif + +/* Nonzero to allow a UTF-8 BOM sequence (0xEF 0xBB 0xBF) at the start of + the file. See https://github.com/benhoyt/inih/issues/21 */ +#ifndef INI_ALLOW_BOM +#define INI_ALLOW_BOM 1 +#endif + +/* Chars that begin a start-of-line comment. Per Python configparser, allow + both ; and # comments at the start of a line by default. */ +#ifndef INI_START_COMMENT_PREFIXES +#define INI_START_COMMENT_PREFIXES ";#" +#endif + +/* Nonzero to allow inline comments (with valid inline comment characters + specified by INI_INLINE_COMMENT_PREFIXES). Set to 0 to turn off and match + Python 3.2+ configparser behaviour. */ +#ifndef INI_ALLOW_INLINE_COMMENTS +#define INI_ALLOW_INLINE_COMMENTS 1 +#endif +#ifndef INI_INLINE_COMMENT_PREFIXES +#define INI_INLINE_COMMENT_PREFIXES ";" +#endif + +/* Nonzero to use stack for line buffer, zero to use heap (malloc/free). */ +#ifndef INI_USE_STACK +#define INI_USE_STACK 1 +#endif + +/* Maximum line length for any line in INI file (stack or heap). Note that + this must be 3 more than the longest line (due to '\r', '\n', and '\0'). */ +#ifndef INI_MAX_LINE +#define INI_MAX_LINE 200 +#endif + +/* Nonzero to allow heap line buffer to grow via realloc(), zero for a + fixed-size buffer of INI_MAX_LINE bytes. Only applies if INI_USE_STACK is + zero. */ +#ifndef INI_ALLOW_REALLOC +#define INI_ALLOW_REALLOC 0 +#endif + +/* Initial size in bytes for heap line buffer. Only applies if INI_USE_STACK + is zero. */ +#ifndef INI_INITIAL_ALLOC +#define INI_INITIAL_ALLOC 200 +#endif + +/* Stop parsing on first error (default is to keep parsing). */ +#ifndef INI_STOP_ON_FIRST_ERROR +#define INI_STOP_ON_FIRST_ERROR 0 +#endif + +/* Nonzero to call the handler at the start of each new section (with + name and value NULL). Default is to only call the handler on + each name=value pair. */ +#ifndef INI_CALL_HANDLER_ON_NEW_SECTION +#define INI_CALL_HANDLER_ON_NEW_SECTION 0 +#endif + +/* Nonzero to allow a name without a value (no '=' or ':' on the line) and + call the handler with value NULL in this case. Default is to treat + no-value lines as an error. */ +#ifndef INI_ALLOW_NO_VALUE +#define INI_ALLOW_NO_VALUE 0 +#endif + +/* Nonzero to use custom ini_malloc, ini_free, and ini_realloc memory + allocation functions (INI_USE_STACK must also be 0). These functions must + have the same signatures as malloc/free/realloc and behave in a similar + way. ini_realloc is only needed if INI_ALLOW_REALLOC is set. */ +#ifndef INI_CUSTOM_ALLOCATOR +#define INI_CUSTOM_ALLOCATOR 0 +#endif + + +#ifdef __cplusplus +} +#endif + +#endif /* INI_H */ |