91 lines
1.4 KiB
C++
91 lines
1.4 KiB
C++
// string.c
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// Author: Josh Holtrop
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// Created: 02/26/04
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// Implements string functions
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#include "string.h"
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#include "asmfuncs.h"
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char *strcat(char *dest, char *src)
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{
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strcpy(dest+strlen(dest), src);
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return dest;
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}
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//Splits a string into multiple strings by turning all characters
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// equal to delim into null values (string termination character)
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//Returns the number of strings after the split, 1 if no delim chars
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int string_split(char *str, char delim)
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{
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if (strlen(str) < 1)
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return 0; //empty string
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int count = 1;
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for (; *str; str++)
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{
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if (*str == delim)
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{
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count++;
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*str = 0;
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}
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}
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return count;
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}
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//Advances a char pointer to the byte after the current string's
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// null-terminating character
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//Useful after calling string_split()
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//Returns a pointer to the following string
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char *string_advance(char *str)
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{
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for (; *str; str++);
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return str+1;
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}
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void rtrim(char *str)
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{
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str += strlen(str); //now points to the null character at the end of the string
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str--;
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for (;;)
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{
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if ((*str == ' ') || (*str == '\t') || (*str == '\n'))
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*str-- = 0;
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else
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break;
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}
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}
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char *ucase(char *str)
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{
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char *ret = str;
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for (;;)
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{
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if (*str == 0)
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break;
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if ((*str >= 'a') && (*str <= 'z'))
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*str = (*str) - 32;
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str++;
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}
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return ret;
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}
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char *lcase(char *str)
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{
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char *ret = str;
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for (;;)
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{
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if (*str == 0)
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break;
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if ((*str >= 'A') && (*str <= 'Z'))
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*str = (*str) + 32;
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str++;
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}
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return ret;
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}
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