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retoor 2026-01-29 02:27:20 +01:00
parent 66f17da391
commit c1450415eb
4 changed files with 623 additions and 3 deletions
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123
src/line.h Executable file
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// Written by retoor@molodetz.nl
// This source code provides command-line input functionalities with
// autocomplete and history features using the readline library. It allows users
// to complete commands and manage input history.
// External includes:
// - <readline/readline.h>
// - <readline/history.h>
// - <glob.h>
// MIT License: 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.
#include "utils.h"
#include <glob.h>
#include <readline/history.h>
#include <readline/readline.h>
#include <stdbool.h>
#include <string.h>
#define HISTORY_FILE "~/.r_history"
bool line_initialized = false;
char *get_history_file() {
static char result[4096];
result[0] = '\0';
char *expanded = expand_home_directory(HISTORY_FILE);
if (expanded == NULL) {
return result;
}
strncpy(result, expanded, sizeof(result) - 1);
result[sizeof(result) - 1] = '\0';
free(expanded);
return result;
}
char *line_command_generator(const char *text, int state) {
static int list_index, len = 0;
const char *commands[] = {"help", "exit", "list", "review",
"refactor", "obfuscate", "!verbose", "!dump",
"!model", "!debug", NULL};
if (!state) {
list_index = 0;
len = strlen(text);
}
while (commands[list_index]) {
const char *command = commands[list_index++];
if (strncmp(command, text, len) == 0) {
return strdup(command);
}
}
return NULL;
}
char *line_file_generator(const char *text, int state) {
static int list_index;
static glob_t glob_result;
static int glob_valid = 0;
char pattern[1024];
if (!state) {
if (glob_valid) {
globfree(&glob_result);
glob_valid = 0;
}
list_index = 0;
snprintf(pattern, sizeof(pattern), "%s*", text);
if (glob(pattern, GLOB_NOSORT, NULL, &glob_result) == 0) {
glob_valid = 1;
} else {
return NULL;
}
}
if (glob_valid && (size_t)list_index < glob_result.gl_pathc) {
return strdup(glob_result.gl_pathv[list_index++]);
}
if (glob_valid) {
globfree(&glob_result);
glob_valid = 0;
}
return NULL;
}
char **line_command_completion(const char *text, int start, int end) {
rl_attempted_completion_over = 1;
// Check if the input is a file path
if (start > 0 && text[0] != ' ') {
return rl_completion_matches(text, line_file_generator);
}
return rl_completion_matches(text, line_command_generator);
}
void line_init() {
if (!line_initialized) {
rl_attempted_completion_function = line_command_completion;
line_initialized = true;
read_history(get_history_file());
}
}
char *line_read(char *prefix) {
char *data = readline(prefix);
if (!(data && *data)) {
free(data);
return NULL;
}
return data;
}
void line_add_history(char *data) {
add_history(data);
write_history(get_history_file());
}

6
src/main.c
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@ -7,9 +7,9 @@
#include "r_error.h"
#include "tool.h"
#include "../line.h"
#include "../markdown.h"
#include "../utils.h"
#include "line.h"
#include "markdown.h"
#include "utils.h"
#include <json-c/json.h>
#include <locale.h>

351
src/markdown.h Executable file
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#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
// --- ANSI Escape Codes ---
#define RESET "\033[0m"
#define BOLD "\033[1m"
#define ITALIC "\033[3m"
#define STRIKETHROUGH "\033[9m"
#define FG_YELLOW "\033[33m"
#define FG_BLUE "\033[34m"
#define FG_CYAN "\033[36m"
#define FG_MAGENTA "\033[35m"
#define BG_YELLOW_FG_BLACK "\033[43;30m"
/**
* @brief Checks if a given word is a programming language keyword.
* * @param word The word to check.
* @return int 1 if it's a keyword, 0 otherwise.
*/
int is_keyword(const char *word) {
// A comprehensive list of keywords from various popular languages.
const char *keywords[] = {
// C keywords
"int", "float", "double", "char", "void", "if", "else", "while", "for",
"return", "struct", "printf",
// Rust keywords
"let", "fn", "impl", "match", "enum", "trait", "use", "mod", "pub",
"const", "static",
// Python keywords
"def", "class", "import", "from", "as", "with", "try", "except",
"finally", "lambda", "async", "await",
// Java keywords
"public", "private", "protected", "class", "interface", "extends",
"implements", "new", "static", "final", "synchronized",
// JavaScript keywords
"var", "let", "const", "function", "async", "await", "if", "else",
"switch", "case", "break", "continue", "return",
// C++ keywords
"namespace", "template", "typename", "class", "public", "private",
"protected", "virtual", "override", "friend", "new",
// Go keywords
"package", "import", "func", "var", "const", "type", "interface",
"struct", "go", "defer", "select",
// Bash keywords
"if", "then", "else", "elif", "fi", "case", "esac", "for", "while",
"until", "do", "done", "function",
// C# keywords
"namespace", "using", "class", "interface", "public", "private",
"protected", "static", "void", "new", "override"};
for (size_t i = 0; i < sizeof(keywords) / sizeof(keywords[0]); i++) {
if (strcmp(word, keywords[i]) == 0) {
return 1;
}
}
return 0;
}
/**
* @brief Applies basic syntax highlighting to a string of code.
* * @param code The code string to highlight.
*/
void highlight_code(const char *code) {
const char *ptr = code;
char buffer[4096];
size_t index = 0;
while (*ptr) {
// Highlight keywords
if (isalpha((unsigned char)*ptr) || *ptr == '_') {
while (isalnum((unsigned char)*ptr) || *ptr == '_') {
buffer[index++] = *ptr++;
}
buffer[index] = '\0';
if (is_keyword(buffer)) {
printf(FG_BLUE "%s" RESET FG_YELLOW, buffer);
} else {
printf("%s", buffer);
}
index = 0;
// Highlight numbers
} else if (isdigit((unsigned char)*ptr)) {
while (isdigit((unsigned char)*ptr)) {
buffer[index++] = *ptr++;
}
buffer[index] = '\0';
printf(FG_CYAN "%s" RESET FG_YELLOW, buffer);
index = 0;
// Print other characters as-is
} else {
putchar(*ptr);
ptr++;
}
}
}
/**
* @brief Parses a Markdown string and prints it to the console with ANSI color
* codes.
*
* This version supports a wide range of Markdown features, including:
* - Headers (H1-H6)
* - Bold (**, __) and Italic (*, _) text
* - Strikethrough (~~) and Highlight (==)
* - Blockquotes (>), Nested Ordered (1.) and Unordered lists (*, -, +)
* - Inline code (`) and full code blocks (```) with syntax highlighting
* - Links ([text](url)) and Horizontal rules (---, ***)
* * @param markdown The raw Markdown string to parse.
*/
void parse_markdown_to_ansi(const char *markdown) {
const char *ptr = markdown;
bool is_start_of_line = true;
while (*ptr) {
// --- Code Blocks (```) ---
if (is_start_of_line && strncmp(ptr, "```", 3) == 0) {
ptr += 3;
while (*ptr && *ptr != '\n')
ptr++;
if (*ptr)
ptr++;
const char *code_start = ptr;
const char *code_end = strstr(code_start, "```");
if (code_end) {
char block_buffer[code_end - code_start + 1];
strncpy(block_buffer, code_start, code_end - code_start);
block_buffer[code_end - code_start] = '\0';
printf(FG_YELLOW);
highlight_code(block_buffer);
printf(RESET);
ptr = code_end + 3;
if (*ptr == '\n')
ptr++;
is_start_of_line = true;
continue;
} else {
printf(FG_YELLOW);
highlight_code(code_start);
printf(RESET);
break;
}
}
// --- Block-level Elements (checked at the start of a line) ---
if (is_start_of_line) {
const char *line_start_ptr = ptr;
int indent_level = 0;
while (*ptr == ' ') {
indent_level++;
ptr++;
}
bool block_processed = true;
if (strncmp(ptr, "###### ", 7) == 0) {
printf(BOLD FG_YELLOW);
ptr += 7;
} else if (strncmp(ptr, "##### ", 6) == 0) {
printf(BOLD FG_YELLOW);
ptr += 6;
} else if (strncmp(ptr, "#### ", 5) == 0) {
printf(BOLD FG_YELLOW);
ptr += 5;
} else if (strncmp(ptr, "### ", 4) == 0) {
printf(BOLD FG_YELLOW);
ptr += 4;
} else if (strncmp(ptr, "## ", 3) == 0) {
printf(BOLD FG_YELLOW);
ptr += 3;
} else if (strncmp(ptr, "# ", 2) == 0) {
printf(BOLD FG_YELLOW);
ptr += 2;
} else if ((strncmp(ptr, "---", 3) == 0 || strncmp(ptr, "***", 3) == 0) &&
(*(ptr + 3) == '\n' || *(ptr + 3) == '\0')) {
printf(FG_CYAN "───────────────────────────────────────────────────────"
"──────────" RESET "\n");
ptr += 3;
if (*ptr == '\n')
ptr++;
is_start_of_line = true;
continue;
} else if (strncmp(ptr, "> ", 2) == 0) {
for (int i = 0; i < indent_level; i++)
putchar(' ');
printf(ITALIC FG_CYAN "▎ " RESET);
ptr += 2;
is_start_of_line = false;
continue;
} else if ((*ptr == '*' || *ptr == '-' || *ptr == '+') &&
*(ptr + 1) == ' ') {
for (int i = 0; i < indent_level; i++)
putchar(' ');
printf(FG_MAGENTA "• " RESET);
ptr += 2;
is_start_of_line = false;
continue;
} else {
const char *temp_ptr = ptr;
while (isdigit((unsigned char)*temp_ptr))
temp_ptr++;
if (temp_ptr > ptr && *temp_ptr == '.' && *(temp_ptr + 1) == ' ') {
for (int i = 0; i < indent_level; i++)
putchar(' ');
printf(FG_MAGENTA);
fwrite(ptr, 1, (temp_ptr - ptr) + 1, stdout);
printf(" " RESET);
ptr = temp_ptr + 2;
is_start_of_line = false;
continue;
} else {
block_processed = false;
ptr = line_start_ptr;
}
}
if (block_processed) {
while (*ptr && *ptr != '\n')
putchar(*ptr++);
printf(RESET "\n");
if (*ptr == '\n')
ptr++;
is_start_of_line = true;
continue;
}
}
// --- Inline Elements (order is important) ---
if (strncmp(ptr, "***", 3) == 0 || strncmp(ptr, "___", 3) == 0) {
const char *marker = strncmp(ptr, "***", 3) == 0 ? "***" : "___";
printf(BOLD ITALIC);
ptr += 3;
const char *end = strstr(ptr, marker);
if (end) {
fwrite(ptr, 1, end - ptr, stdout);
ptr = end + 3;
} else {
fputs(ptr, stdout);
ptr += strlen(ptr);
}
printf(RESET);
continue;
}
if (strncmp(ptr, "**", 2) == 0 || strncmp(ptr, "__", 2) == 0) {
const char *marker = strncmp(ptr, "**", 2) == 0 ? "**" : "__";
printf(BOLD);
ptr += 2;
const char *end = strstr(ptr, marker);
if (end) {
fwrite(ptr, 1, end - ptr, stdout);
ptr = end + 2;
} else {
fputs(ptr, stdout);
ptr += strlen(ptr);
}
printf(RESET);
continue;
}
if ((*ptr == '*' || *ptr == '_') && !isspace(*(ptr - 1)) &&
!isspace(*(ptr + 1))) {
char marker = *ptr;
printf(ITALIC);
ptr++;
const char *start = ptr;
while (*ptr && *ptr != marker)
ptr++;
if (*ptr == marker) {
fwrite(start, 1, ptr - start, stdout);
ptr++;
} else {
putchar(marker);
ptr = start;
}
printf(RESET);
continue;
}
if (strncmp(ptr, "~~", 2) == 0) {
printf(STRIKETHROUGH);
ptr += 2;
const char *end = strstr(ptr, "~~");
if (end) {
fwrite(ptr, 1, end - ptr, stdout);
ptr = end + 2;
} else {
fputs(ptr, stdout);
ptr += strlen(ptr);
}
printf(RESET);
continue;
}
if (strncmp(ptr, "==", 2) == 0) {
printf(BG_YELLOW_FG_BLACK);
ptr += 2;
const char *end = strstr(ptr, "==");
if (end) {
fwrite(ptr, 1, end - ptr, stdout);
ptr = end + 2;
} else {
fputs(ptr, stdout);
ptr += strlen(ptr);
}
printf(RESET);
continue;
}
if (*ptr == '`' && *(ptr + 1) != '`') {
printf(FG_YELLOW);
ptr++;
const char *start = ptr;
while (*ptr && *ptr != '`')
ptr++;
fwrite(start, 1, ptr - start, stdout);
if (*ptr == '`')
ptr++;
printf(RESET);
continue;
}
if (*ptr == '[') {
const char *text_start = ptr + 1;
const char *text_end = strchr(text_start, ']');
if (text_end && *(text_end + 1) == '(') {
const char *url_start = text_end + 2;
const char *url_end = strchr(url_start, ')');
if (url_end) {
printf(FG_BLUE);
fwrite(text_start, 1, text_end - text_start, stdout);
printf(RESET " (");
printf(ITALIC FG_CYAN);
fwrite(url_start, 1, url_end - url_start, stdout);
printf(RESET ")");
ptr = url_end + 1;
continue;
}
}
}
// --- Default Character ---
if (*ptr == '\n') {
is_start_of_line = true;
} else if (!isspace((unsigned char)*ptr)) {
is_start_of_line = false;
}
putchar(*ptr);
ptr++;
}
}

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src/utils.h Executable file
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// Written by retoor@molodetz.nl
// This header file contains utility functions for manipulating file system
// paths, focusing primarily on expanding paths starting with '~' to the home
// directory.
// This code uses standard libraries: stdio.h, stdlib.h, and string.h, and
// conditionally includes the posix libraries pwd.h and unistd.h when expanding
// the home directory manually.
// MIT License
//
// Permission is granted to use, copy, modify, merge, distribute, sublicense,
// and/or sell copies of the Software. The license includes conditions about
// providing a copy of the license and the limitation of liability and warranty.
#ifndef UTILS_H
#define UTILS_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <windows.h>
#else
#include <limits.h>
#include <pwd.h>
#include <unistd.h>
#endif
void get_current_directory() {
char buffer[PATH_MAX];
#ifdef _WIN32
DWORD length = GetCurrentDirectory(PATH_MAX, buffer);
if (length > 0 && length < PATH_MAX) {
printf("Current Directory: %s\n", buffer);
} else {
printf("Error getting current directory.\n");
}
#else
if (getcwd(buffer, sizeof(buffer)) != NULL) {
printf("Current Directory: %s\n", buffer);
} else {
perror("Error getting current directory");
}
#endif
}
char *expand_home_directory(const char *path) {
if (path[0] != '~') {
return strdup(path); // Return the original path if it doesn't start with ~
}
char *home_dir;
#ifdef _WIN32
home_dir = getenv("USERPROFILE"); // Get home directory on Windows
#else
struct passwd *pw = getpwuid(getuid());
home_dir = pw->pw_dir; // Get home directory on Linux
#endif
if (home_dir == NULL) {
return NULL; // Error getting home directory
}
size_t home_len = strlen(home_dir);
size_t path_len = strlen(path + 1);
size_t expanded_size = home_len + path_len + 1;
char *expanded_path = (char *)malloc(expanded_size);
if (expanded_path == NULL) {
return NULL;
}
memcpy(expanded_path, home_dir, home_len);
memcpy(expanded_path + home_len, path + 1, path_len);
expanded_path[home_len + path_len] = '\0';
return expanded_path;
}
unsigned long hash(const char *str) {
unsigned long hash = 5381; // Starting value
int c;
while ((c = *str++)) {
hash = ((hash << 5) + hash) + c; // hash * 33 + c
}
return hash;
}
char *joinpath(const char *base_url, const char *path) {
static char result[4096];
size_t base_len = strlen(base_url);
size_t pos = 0;
if (base_len >= sizeof(result) - 2) {
base_len = sizeof(result) - 2;
}
memcpy(result, base_url, base_len);
pos = base_len;
if (pos > 0 && result[pos - 1] != '/') {
result[pos++] = '/';
}
if (path[0] == '/') {
path++;
}
size_t path_len = strlen(path);
if (pos + path_len >= sizeof(result)) {
path_len = sizeof(result) - pos - 1;
}
memcpy(result + pos, path, path_len);
result[pos + path_len] = '\0';
return result;
}
char *read_file(const char *path) {
char *expanded_path = expand_home_directory(path);
if (expanded_path == NULL) {
return NULL;
}
FILE *file = fopen(expanded_path, "r");
free(expanded_path);
if (file == NULL) {
return NULL;
}
fseek(file, 0, SEEK_END);
long size = ftell(file);
fseek(file, 0, SEEK_SET);
char *buffer = (char *)malloc(size + 1);
size_t read = fread(buffer, 1, size, file);
if (read == 0) {
free(buffer);
return NULL;
}
fclose(file);
buffer[read] = '\0';
return buffer;
}
#endif