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Improved and added comments in updatestatus

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This commit is contained in:
Ashish Kumar Yadav 2020-09-20 14:56:00 +05:30
parent e0fa5c3700
commit c802081605
1 changed files with 26 additions and 26 deletions
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52
dwmblocks.c
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@ -214,69 +214,69 @@ updatestatus()
Block *current = blocks;
/* checking half of the function */
/* skip empty blocks */
/* find first non-empty block */
for (;; current++) {
/* all blocks are empty */
if (!current->pathu)
return 0;
/* skip delimiter for the first non-empty block */
/* contents of the current block just changed */
if (*current->cmdoutcur != *current->cmdoutprv)
goto update0;
/* no delimiter before the first non-empty block */
if (*current->cmdoutcur != '\n' && *current->cmdoutcur != '\0')
goto skipdelimc;
if (*current->cmdoutcur != *current->cmdoutprv) {
*current->cmdoutprv = *current->cmdoutcur;
current++;
goto update0;
}
}
/* main loop */
for (; current->pathu; current++) {
/* handles delimiter */
/* contents of the current block just changed */
if (*current->cmdoutcur != *current->cmdoutprv)
goto update1;
/* delimiter handler */
/* current block is non-empty */
if (*current->cmdoutcur != '\n' && *current->cmdoutcur != '\0')
s += delimlength;
else {
if (*current->cmdoutcur != *current->cmdoutprv) {
*current->cmdoutprv = *current->cmdoutcur;
current++;
goto update1;
}
/* skip over empty blocks */
else
continue;
}
skipdelimc:
c = current->cmdoutcur; p = current->cmdoutprv;
if (*c != *p)
goto update2;
else {
c++; p++;
}
/* checking for the first byte has been done */
c = current->cmdoutcur + 1; p = current->cmdoutprv + 1;
for (; *c != '\n' && *c != '\0'; c++, p++)
/* contents of the current block just changed */
if (*c != *p) {
s += c - current->cmdoutcur;
goto update2;
}
s += c - current->cmdoutcur;
/* byte containing info about signal number for the block */
if (current->pathc && current->signal)
s++;
}
return 0;
update0:
/* updating half of the function */
/* skip empty blocks */
/* find first non-empty block */
for (;; current++) {
/* all blocks are empty */
if (!current->pathu)
return 1;
/* skip delimiter for the first non-empty block */
update0:
/* skip delimiter before the first non-empty block */
if (*current->cmdoutcur != '\n' && *current->cmdoutcur != '\0')
goto skipdelimu;
*current->cmdoutprv = *current->cmdoutcur;
}
update1:
/* main loop */
for (; current->pathu; current++) {
/* handles delimiter */
update1:
/* delimiter handler */
/* current block is non-empty */
if (*current->cmdoutcur != '\n' && *current->cmdoutcur != '\0') {
d = delim;
while (*d != '\0')
*(s++) = *(d++);
*(s++) = '\n'; /* to mark the end of delimiter */
/* skip over empty blocks */
} else {
*current->cmdoutprv = *current->cmdoutcur;
continue;