121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/* trit.c: translation utility */
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#include "str.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h> // For isspace
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/* Constants */
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enum {
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LOWER = 1<<1,
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UPPER = 1<<2,
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TITLE = 1<<3,
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STRIP = 1<<4,
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DELETE = 1<<5,
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};
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/* Functions */
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void usage(int status) {
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fprintf(stderr, "Usage: trit SET1 SET2\n\n");
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fprintf(stderr, "Post Translation filters:\n\n");
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fprintf(stderr, " -l Convert to lowercase\n");
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fprintf(stderr, " -u Convert to uppercase\n");
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fprintf(stderr, " -t Convert to titlecase\n");
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fprintf(stderr, " -s Strip trailing whitespace\n");
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fprintf(stderr, " -d Delete letters in SET1\n");
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exit(status);
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}
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void translate_stream(FILE *stream, const char *set1, const char *set2, int flags) {
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char line[256];
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while (fgets(line, sizeof(line), stream) != NULL) {
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// Remove newline char if present
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size_t len = strlen(line);
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if (len > 0 && line[len - 1] == '\n') {
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line[len - 1] = '\0';
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}
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// Translate or delete part of string
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char processed_line[1024];
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strcpy(processed_line, line);
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if (flags & DELETE) {
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str_delete(processed_line, set1, line);
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strcpy(processed_line, line);
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set2 = "";
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} else if (set1 != NULL && set2 != NULL) {
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str_translate(processed_line, set1, set2, line);
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strcpy(processed_line, line);
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}
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// Filters
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if (flags & LOWER) {
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str_lower(processed_line, line);
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strcpy(processed_line, line);
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}
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if (flags & UPPER) {
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str_upper(processed_line, line);
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strcpy(processed_line, line);
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}
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if (flags & TITLE) {
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str_title(processed_line, line);
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strcpy(processed_line, line);
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}
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if (flags & STRIP) {
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str_rstrip(processed_line, " \t\r\f\v", line); // all the whitespace characters I can think of (has no newline)
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strcpy(processed_line, line);
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}
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printf("%s\n", processed_line);
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}
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}
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/* Main Execution */
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int main(int argc, char *argv[]) {
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int flags = 0;
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char *set1 = NULL;
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char *set2 = NULL;
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int positional_args_count = 0;
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for (int i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-l") == 0) {
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flags |= LOWER;
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} else if (strcmp(argv[i], "-u") == 0) {
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flags |= UPPER;
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} else if (strcmp(argv[i], "-t") == 0) {
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flags |= TITLE;
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} else if (strcmp(argv[i], "-d") == 0) {
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flags |= DELETE;
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} else if (strcmp(argv[i], "-s") == 0) {
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flags |= STRIP;
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} else if (strcmp(argv[i], "-h") == 0) {
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usage(0);
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} else {
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positional_args_count++;
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if (positional_args_count == 1) {
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set1 = argv[i];
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} else if (positional_args_count == 2) {
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set2 = argv[i];
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} else {
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usage(1);
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}
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}
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}
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translate_stream(stdin, set1, set2, flags);
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return 0;
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}
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/* Main Execution */
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/* vim: set sts=4 sw=4 ts=8 expandtab ft=c: */
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