53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#ifndef ESTR_H
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#define ESTR_H
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/*
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estr.h - Easy string manipulation
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This library has macros to allow easier manipulation of strings. No longer shall
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you have to malloc and realloc away to keep adding to your strings.
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Usage:
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Estr myString = CREATE_ESTR("my awesome string");
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APPEND_ESTR(myString, " is so cool");
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printf("%s\n", myString.str);
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*/
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#define CREATE_ESTR(instr) \
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(Estr) { \
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.str = instr,\
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.size = strlen(instr),\
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.shouldBeFreed = 0, \
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.destroyed = 0 \
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}
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#define APPEND_ESTR(estr, instr) { \
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estr.size = estr.size + strlen(instr); \
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char* tmp_ptr = malloc(estr.size + 1); \
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if (tmp_ptr == NULL) printf("WARNING: Could not realloc estr " #estr "\n"); \
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else { \
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snprintf(tmp_ptr, estr.size + 1, "%s%s", estr.str, instr); \
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if (estr.shouldBeFreed > 0) free(estr.str); \
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estr.shouldBeFreed = 1; \
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estr.str = tmp_ptr; \
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} \
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}
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#define DESTROY_ESTR(estr) if (estr.shouldBeFreed > 0 && estr.destroyed < 1) free(estr.str);
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typedef struct Estr {
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char* str;
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size_t size;
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int8_t shouldBeFreed;
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int8_t destroyed;
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} Estr;
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#endif // ESTR_H
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