init

libnut/ellipsis.c

@@ -0,0 +1,181 @@
+#include "../config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+#define ELLIPSIS_TEST
+*/
+
+#ifdef ELLIPSIS_TEST
+void usage_statement(void);
+#endif
+int compact_string(char *main_string, char *ellipsis_string, 
+		    int num_chars, int mode, int eLength);
+
+#ifdef ELLIPSIS_TEST
+int main(int argc, char *argv[]) {
+
+    char *main_string;
+    char *ellipsis_string;
+    int num_chars;
+    int mode;
+    int result;
+    int ellipsisLength=3;
+
+    int i,j;
+
+        /* Check number of args */
+    if(argc != 4) {
+        usage_statement();
+        return(1);
+    }
+
+        /* get args */
+    main_string = argv[1];
+    num_chars = atoi(argv[2]);
+    mode = atoi(argv[3]);
+
+        /* allocate ellipsis_string */
+    ellipsis_string = (char *)calloc(num_chars,1);
+
+    result = compact_string(main_string, ellipsis_string, num_chars, mode, ellipsisLength);
+
+    if(result == 1) {
+	printf("The original string is:\n");
+	printf("\t|%s|\n\n", main_string);
+	printf("And the compacted string is:\n");
+	printf("\t|%s|\n\n", ellipsis_string);
+    }
+    else
+	printf("you screwed something up...\n");
+
+}
+#endif
+
+
+int compact_string(char *main_string, char *ellipsis_string, 
+		    int num_chars, int mode, int eLength) {
+
+    int string_len;
+    int feem, puff, i;
+
+    num_chars--;
+
+    string_len = strlen(main_string);
+    if(string_len <= num_chars) {
+	strcpy(ellipsis_string, main_string);
+	return(1);
+    }
+
+    switch(mode) {
+
+    case 1: {
+	
+	puff = num_chars - eLength;
+	feem = string_len - puff;
+
+	strcpy(ellipsis_string,".");
+/*
+	i=1;
+	while (i<eLength) {
+		strcat(ellipsis_string, ".");
+		i++;
+	}
+*/
+
+	for (i = 0; i < eLength; i++) {
+		ellipsis_string [i] = '.';
+	}
+	ellipsis_string [i] = '\0';
+
+	strncat(ellipsis_string, main_string + feem, puff);
+
+	break;
+
+    }
+
+    case 2: {
+
+	int right_side, left_side;
+
+/*
+	puff = num_chars - eLength;
+	right_side = puff >> 1;
+	left_side = puff - right_side;
+
+	strncpy(ellipsis_string, main_string, right_side);
+	ellipsis_string[right_side]='\0';
+	i=0;
+	while (i<eLength) {
+		strcat(ellipsis_string, ".");
+		i++;
+	}
+	strncat(ellipsis_string, main_string+(string_len-left_side), left_side);
+*/
+
+	puff = num_chars - eLength;
+	left_side = puff >> 1;
+	right_side = puff - left_side;
+
+	strncpy (ellipsis_string, main_string, left_side);
+	for (i = left_side; i < num_chars-right_side; i++) {
+		ellipsis_string [i] = '.';
+	}
+	ellipsis_string [num_chars - right_side] = '\0';
+	strncat (ellipsis_string,
+		 main_string + (string_len - right_side),
+		 right_side);
+
+	break;
+
+    }
+	
+    case 3: {
+	
+	puff = num_chars - eLength;
+	feem = string_len - puff;
+
+	strncpy(ellipsis_string, main_string, puff);
+/*
+	ellipsis_string[puff]='\0';
+	i=0;
+	while (i<eLength) {
+		strcat(ellipsis_string, ".");
+		i++;
+	}
+*/
+
+	for (i = puff; i < num_chars; i++) {
+		ellipsis_string [i] = '.';
+	}
+
+	break;
+	
+    }
+	
+    default: {
+#ifdef ELLIPSIS_TEST
+	usage_statement();
+	exit(0);
+#else
+	return(-1);
+#endif
+    }
+	
+    }
+
+    ellipsis_string[num_chars]='\0';
+
+    return(1);
+}
+
+
+#ifdef ELLIPSIS_TEST
+void usage_statement(void) {
+
+    printf("Usage: main <initial_string> num_chars mode; where mode is:\n");
+    printf("       1=cut off start, 2=cut off middle, 3=cut off end\n");
+
+}
+#endif