59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#include <stdio.h>
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int com = 0;
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/*
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* TODO:
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* Keep backbuffer of 1 character (current & i-1) to check for comment ends
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* Handle double slashes nicely
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* Find a cleaner way to achieve this
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*/
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int uncomment(char s[],int lim) {
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int c, i, quo = 0, wnl = 0;
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/* c is character integer
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* i is column
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* com is current comment state
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* quo is current quote state */
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for (i=0; i < lim-1 && (c=getchar())!=EOF && c!='\n'; ++i) {
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/* Check if we are in a character constant or between quotes, if yes ignore comments */
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if (c == '"' || (c == '\'' && s[i-1] != '"')) {
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if (quo == 1) {
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quo = 0; //test
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} else {
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quo = 1;
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}
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} else if (quo == 0 && (c == '/' || c == '*')) {
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if (com == 0) {
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if (c == '*' && s[i-1] == '/') {
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com = 1;
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} else if (c == '/' && s[i-1] == '/') {
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wnl = 1;
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s[i-1] = ' ';
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}
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} else if (com == 1 && c == '/' && s[i-1] == '*') {
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com = 0;
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}
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}
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if (com == 0 && wnl == 0) {
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s[i] = c;
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} else {
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s[i] = ' ';
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}
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}
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/* If the line is completly empty, do not print a new line, jump to the next line */
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for (;i > 0 && (s[i-1] == ' ' || s[i-1] == '\t'); i--);
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if (i == 0) {
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s[i] = '\0';
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} else {
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s[i] = '\n';
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s[i+1] = '\0';
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}
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/* If we have hit the end of the line, tell the previous function, else return the lenght */
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if (c == EOF) {
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return EOF;
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} else {
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return i;
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}
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}
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