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tools/nxstyle.c: Fix detection of blank line at beginning for file. Fix detection of whitespace at the end of a line.

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This commit is contained in:
Gregory Nutt 2018-10-30 16:33:41 -06:00
parent 552f53e578
commit 6ac4681233
1 changed files with 34 additions and 17 deletions
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51
tools/nxstyle.c
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@ -124,12 +124,17 @@ int main(int argc, char **argv, char **envp)
lineno);
}
if (lineno == blank_lineno + 1)
if (lineno == 1)
{
fprintf(stderr, "File begins with a blank line\n");
}
else if (lineno == blank_lineno + 1)
{
fprintf(stderr, "Too many blank lines at line %d\n", lineno);
}
blank_lineno = lineno;
continue;
}
else /* This line is non-blank */
{
@ -138,7 +143,8 @@ int main(int argc, char **argv, char **envp)
if (lineno == comment_lineno + 1)
{
/* No blank line should be present if the current line contains
* a right brace or a pre-processor line.
* a right brace, a pre-processor line, the start of another
* comment.
*
* REVISIT: Generates a false alarm if the current line is also
* a comment. Generally it is acceptable for one comment to
@ -208,7 +214,10 @@ int main(int argc, char **argv, char **envp)
if (line[indent] == '/' && line[indent +1] == '*' &&
lptr - line == linelen - 3)
{
if (comment_lineno != lineno - 1 &&
/* Check if there should be a blank line before the comment */
if (lineno > 1 &&
comment_lineno != lineno - 1 &&
blank_lineno != lineno - 1 &&
noblank_lineno != lineno - 1)
{
@ -395,9 +404,18 @@ int main(int argc, char **argv, char **envp)
}
#endif
/* Handle nested comments */
if (ncomment > 0)
{
ncomment--;
/* Remember the line number of the line containing the
* closing of the outermost comment.
*/
if (--ncomment == 0)
{
comment_lineno = lineno;
}
}
else
{
@ -406,6 +424,9 @@ int main(int argc, char **argv, char **envp)
"Closing without opening comment at line %d:%d\n",
lineno, n);
}
n++;
continue;
}
/* Check for C++ style comments
@ -665,19 +686,6 @@ int main(int argc, char **argv, char **envp)
}
break;
/* Check for space at the end of the line */
case '\n':
{
if (n > 0 && isspace((int)line[n - 1]))
{
fprintf(stderr,
"Dangling whitespace at the end of line %d:%d\n",
lineno, n);
}
}
break;
/* Check for space around various operators */
case '-':
@ -887,6 +895,15 @@ int main(int argc, char **argv, char **envp)
}
}
/* Loop terminates when NUL or newline character found */
/* Check for space at the end of the line */
if (n > 1 && line[n] == '\n' && isspace((int)line[n - 1]))
{
fprintf(stderr, "Dangling whitespace at the end of line %d:%d\n",
lineno, n);
}
/* STEP 4: Check alignment */
/* Within a comment block, we need only check on the alignment of the