182 lines
3.1 KiB
C
182 lines
3.1 KiB
C
#include "../config.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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/*
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#define ELLIPSIS_TEST
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*/
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#ifdef ELLIPSIS_TEST
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void usage_statement(void);
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#endif
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int compact_string(char *main_string, char *ellipsis_string,
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int num_chars, int mode, int eLength);
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#ifdef ELLIPSIS_TEST
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int main(int argc, char *argv[]) {
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char *main_string;
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char *ellipsis_string;
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int num_chars;
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int mode;
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int result;
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int ellipsisLength=3;
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int i,j;
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/* Check number of args */
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if(argc != 4) {
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usage_statement();
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return(1);
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}
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/* get args */
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main_string = argv[1];
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num_chars = atoi(argv[2]);
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mode = atoi(argv[3]);
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/* allocate ellipsis_string */
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ellipsis_string = (char *)calloc(num_chars,1);
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result = compact_string(main_string, ellipsis_string, num_chars, mode, ellipsisLength);
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if(result == 1) {
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printf("The original string is:\n");
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printf("\t|%s|\n\n", main_string);
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printf("And the compacted string is:\n");
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printf("\t|%s|\n\n", ellipsis_string);
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}
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else
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printf("you screwed something up...\n");
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}
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#endif
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int compact_string(char *main_string, char *ellipsis_string,
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int num_chars, int mode, int eLength) {
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int string_len;
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int feem, puff, i;
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num_chars--;
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string_len = strlen(main_string);
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if(string_len <= num_chars) {
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strcpy(ellipsis_string, main_string);
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return(1);
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}
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switch(mode) {
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case 1: {
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puff = num_chars - eLength;
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feem = string_len - puff;
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strcpy(ellipsis_string,".");
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/*
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i=1;
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while (i<eLength) {
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strcat(ellipsis_string, ".");
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i++;
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}
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*/
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for (i = 0; i < eLength; i++) {
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ellipsis_string [i] = '.';
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}
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ellipsis_string [i] = '\0';
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strncat(ellipsis_string, main_string + feem, puff);
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break;
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}
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case 2: {
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int right_side, left_side;
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/*
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puff = num_chars - eLength;
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right_side = puff >> 1;
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left_side = puff - right_side;
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strncpy(ellipsis_string, main_string, right_side);
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ellipsis_string[right_side]='\0';
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i=0;
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while (i<eLength) {
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strcat(ellipsis_string, ".");
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i++;
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}
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strncat(ellipsis_string, main_string+(string_len-left_side), left_side);
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*/
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puff = num_chars - eLength;
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left_side = puff >> 1;
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right_side = puff - left_side;
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strncpy (ellipsis_string, main_string, left_side);
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for (i = left_side; i < num_chars-right_side; i++) {
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ellipsis_string [i] = '.';
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}
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ellipsis_string [num_chars - right_side] = '\0';
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strncat (ellipsis_string,
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main_string + (string_len - right_side),
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right_side);
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break;
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}
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case 3: {
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puff = num_chars - eLength;
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feem = string_len - puff;
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strncpy(ellipsis_string, main_string, puff);
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/*
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ellipsis_string[puff]='\0';
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i=0;
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while (i<eLength) {
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strcat(ellipsis_string, ".");
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i++;
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}
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*/
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for (i = puff; i < num_chars; i++) {
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ellipsis_string [i] = '.';
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}
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break;
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}
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default: {
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#ifdef ELLIPSIS_TEST
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usage_statement();
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exit(0);
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#else
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return(-1);
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#endif
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}
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}
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ellipsis_string[num_chars]='\0';
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return(1);
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}
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#ifdef ELLIPSIS_TEST
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void usage_statement(void) {
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printf("Usage: main <initial_string> num_chars mode; where mode is:\n");
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printf(" 1=cut off start, 2=cut off middle, 3=cut off end\n");
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}
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#endif
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