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comparison output.c @ 185:16b4451e34b8

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Add the ability to output line numbers, sort of. It is enabled with the intentionally undocumented -p option (similar to -P but reversed sense) and it might be vaguely useful but only prints the line number when the file changes and may not get the line numbers right.
author David A. Holland
date Fri, 12 Jun 2015 03:59:36 -0400
parents ed45f2d8d3bc
children
comparison
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184:d359d9b86327 185:16b4451e34b8
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE. 27 * POSSIBILITY OF SUCH DAMAGE.
28 */ 28 */
29 29
30 #include <stdio.h>
30 #include <string.h> 31 #include <string.h>
31 #include <unistd.h> 32 #include <unistd.h>
32 #include <fcntl.h> 33 #include <fcntl.h>
33 #include <errno.h> 34 #include <errno.h>
34 35
170 linebufmax *= 2; 171 linebufmax *= 2;
171 } 172 }
172 linebuf = dorealloc(linebuf, oldmax, linebufmax); 173 linebuf = dorealloc(linebuf, oldmax, linebufmax);
173 } 174 }
174 if (linebufpos == 0) { 175 if (linebufpos == 0) {
176 if (!place_samefile(&linebufplace, p)) {
177 if (mode.output_cheaplinenumbers) {
178 char str[256];
179
180 snprintf(str, sizeof(str), "# %u \"%s\"\n",
181 p->line, place_getname(p));
182 dowrite(str, strlen(str));
183 }
184 }
175 linebufplace = *p; 185 linebufplace = *p;
176 } 186 }
177 memcpy(linebuf + linebufpos, buf, len); 187 memcpy(linebuf + linebufpos, buf, len);
178 linebufpos += len; 188 linebufpos += len;
179 189