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tweaks: improve a handful of comments

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This commit is contained in:
Benno Schulenberg 2019-06-08 13:58:28 +02:00
parent 8582e4a6b9
commit c3bf17a801
1 changed files with 12 additions and 16 deletions
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src/text.c
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@ -1610,18 +1610,17 @@ void squeeze(linestruct *line, size_t skip)
from = line->data + skip;
to = newdata + skip;
/* For each character, 1) when a blank, change it to a space, and pass over
* all blanks after it; 2) if it is punctuation, copy it plus a possible
* tailing bracket, and change at most two subsequent blanks to spaces, and
* pass over all blanks after these; 3) leave anything else unchanged. */
while (*from != '\0') {
/* If this character is blank, change it to a space,
* and pass over all blanks after it. */
if (is_blank_mbchar(from)) {
from += parse_mbchar(from, NULL, NULL);
*(to++) = ' ';
while (*from != '\0' && is_blank_mbchar(from))
from += parse_mbchar(from, NULL, NULL);
/* If this character is punctuation, then copy it plus a possible
* bracket, and change at most two of subsequent blanks to spaces,
* and pass over all blanks after these. */
} else if (mbstrchr(punct, from) != NULL) {
charlen = parse_mbchar(from, NULL, NULL);
@ -1650,7 +1649,6 @@ void squeeze(linestruct *line, size_t skip)
while (*from != '\0' && is_blank_mbchar(from))
from += parse_mbchar(from, NULL, NULL);
/* Leave unchanged anything that is neither blank nor punctuation. */
} else {
charlen = parse_mbchar(from, NULL, NULL);
@ -1738,14 +1736,12 @@ bool inpar(const linestruct *const line)
return (line->data[quote_len + indent_len] != '\0');
}
/* Determine the beginning, length, and quoting of the first found paragraph.
* Return TRUE if we found a paragraph, and FALSE otherwise. Furthermore,
* return in firstline the first line of the paragraph,
* and in *parlen the length of the paragraph. */
/* Find the first occurring paragraph in the forward direction. Return TRUE
* when a paragraph was found, and FALSE otherwise. Furthermore, return the
* first line and the length (number of lines) of the paragraph. */
bool find_paragraph(linestruct **firstline, size_t *const parlen)
{
linestruct *line = *firstline;
/* The line of the current paragraph we're searching in. */
/* When not currently in a paragraph, move forward to a line that is. */
while (!inpar(line) && line->next != NULL)
@ -1753,22 +1749,22 @@ bool find_paragraph(linestruct **firstline, size_t *const parlen)
*firstline = line;
/* Move down to the last line of the paragraph. */
/* Move down to the last line of the paragraph (if any). */
do_para_end(&line);
/* When not in a paragraph now, there aren't any paragraphs left. */
if (!inpar(line))
return FALSE;
/* We found a paragraph; determine number of lines. */
/* We found a paragraph; determine its number of lines. */
*parlen = line->lineno - (*firstline)->lineno + 1;
return TRUE;
}
/* Tack all the lines of the paragraph (that starts at *line, and consists of
* par_len lines) together, skipping
* the quoting and indentation on all lines after the first. */
/* Concatenate into a single line all the lines of the paragraph that starts at
* *line and consists of par_len lines, skipping the quoting and indentation on
* all lines after the first. */
void concat_paragraph(linestruct **line, size_t par_len)
{
while (par_len > 1) {