0,0 → 1,35 |
/* |
* trims any space, tab, cr or lf |
* Copyright (C) 2012-2021 Mateusz Viste |
*/ |
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#include "trim.h" |
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void trim(char *str) { |
int x, y, firstchar = -1, lastchar = -1; |
|
/* find out first and last non-whitespace char */ |
for (x = 0; str[x] != 0; x++) { |
switch (str[x]) { |
case ' ': |
case '\t': |
case '\n': |
case '\r': |
break; |
default: |
if (firstchar < 0) firstchar = x; |
lastchar = x; |
break; |
} |
} |
|
/* right trim */ |
str[lastchar + 1] = 0; |
|
/* left trim (shift to the left ) */ |
if (firstchar > 0) { |
y = 0; |
for (x = firstchar; str[x] != 0; x++) str[y++] = str[x]; |
str[y] = 0; |
} |
} |