#include <cgraph/cgraph.h>
#include <cgraph/agxbuf.h>
+#include <cgraph/unreachable.h>
#include <ingraphs/ingraphs.h>
#include <common/pointset.h>
#include <getopt.h>
#include <edgepaint/node_distinct_coloring.h>
#include <edgepaint/edge_distinct_coloring.h>
#include <sparse/color_palette.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
typedef enum {
FMT_GV,
fprintf(stderr, "Usage: %s <options> gv file with 2D coordinates.\n", cmd);
fprintf(stderr, "Find a color assignment of the edges, such that edges that cross at small angle have as different as possible.\n");
fprintf(stderr, "Options are: \n");
- fprintf(stderr, " -accuracy=e : accuracy with which to find the maximally different coloring for each node with regard to its neighbors. Default 0.01.\n");
- fprintf(stderr, " -angle=a : if edge crossing is less than that angle a, then make the edge colors different. Default 15.\n");
- fprintf(stderr, " -random_seed=s : random seed to use. s must be an integer. If s is negative, we do -s iterations with different seeds and pick the best.\n");
- fprintf(stderr, " -color_scheme=c : palette used. The string c should be \"rgb\", \"gray\", \"lab\" (default); or\n");
+ fprintf(stderr, " --accuracy=e : accuracy with which to find the maximally different coloring for each node with regard to its neighbors. Default 0.01.\n");
+ fprintf(stderr, " --angle=a : if edge crossing is less than that angle a, then make the edge colors different. Default 15.\n");
+ fprintf(stderr, " --random_seed=s : random seed to use. s must be an integer. If s is negative, we do -s iterations with different seeds and pick the best.\n");
+ fprintf(stderr, " --color_scheme=c : palette used. The string c should be \"rgb\", \"gray\", \"lab\" (default); or\n");
fprintf(stderr, " a comma-separated list of RGB colors in hex (e.g., \"#ff0000,#aabbed,#eeffaa\"); or\n");
fprintf(stderr, " a string specifying a Brewer color scheme (e.g., \"accent7\"; see https://graphviz.org/doc/info/colors.html#brewer).\n");
- fprintf(stderr, " -lightness=l1,l2 : only applied for LAB color scheme: l1 must be integer >=0, l2 integer <=100, and l1 <=l2. By default we use 0,70\n");
- fprintf(stderr, " -share_endpoint : if this option is specified, edges that shares an end point are not considered in conflict if they are close to\n");
+ fprintf(stderr, " --lightness=l1,l2 : only applied for LAB color scheme: l1 must be integer >=0, l2 integer <=100, and l1 <=l2. By default we use 0,70\n");
+ fprintf(stderr, " --share_endpoint : if this option is specified, edges that shares an end point are not considered in conflict if they are close to\n");
fprintf(stderr, " parallel but is on the opposite ends of the shared point (around 180 degree).\n");
fprintf(stderr, " -v : verbose\n");
fprintf(stderr, " -o fname : write output to file fname (stdout)\n");
return 0;
}
+static bool strprefix(const char *s1, const char *s2) {
+ return strncmp(s1, s2, strlen(s2)) == 0;
+}
static void init(int argc, char *argv[], real *angle, real *accuracy, char **infile, int *check_edges_with_same_endpoint, int *seed, char **color_scheme, char **lightness){
- int c;
char* cmd = argv[0];
outfile = NULL;
*color_scheme = "lab";
*lightness = NULL;
- while ((c = getopt(argc, argv, ":vc:a:s:r:l:o:?")) != -1) {
- switch (c) {
- case 's':
- *check_edges_with_same_endpoint = 1;
+ while (true) {
+
+ // some constants above the range of valid ASCII to use as getopt markers
+ enum {
+ OPT_ACCURACY = 128,
+ OPT_ANGLE = 129,
+ OPT_COLOR_SCHEME = 130,
+ OPT_RANDOM_SEED = 131,
+ OPT_LIGHTNESS = 132,
+ OPT_SHARE_ENDPOINT = 133,
+ };
+
+ static const struct option opts[] = {
+ // clang-format off
+ {"accuracy", required_argument, 0, OPT_ACCURACY},
+ {"angle", required_argument, 0, OPT_ANGLE},
+ {"color_scheme", required_argument, 0, OPT_COLOR_SCHEME},
+ {"random_seed", required_argument, 0, OPT_RANDOM_SEED},
+ {"lightness", required_argument, 0, OPT_LIGHTNESS},
+ {"share_endpoint", no_argument, 0, OPT_SHARE_ENDPOINT},
+ {0, 0, 0, 0},
+ // clang-format on
+ };
+
+ int option_index = 0;
+ int c = getopt_long(argc, argv, "a:c:r:l:o:s:v?", opts, &option_index);
+
+ if (c == -1) {
break;
+ }
+
+ const char *arg = optarg;
+
+ // legacy handling of single-dash-prefixed options
+ if (c == 'a' && strprefix(arg, "ccuracy=")) {
+ c = OPT_ACCURACY;
+ arg += strlen("ccuracy=");
+ } else if (c == 'a' && strprefix(arg, "ngle=")) {
+ c = OPT_ANGLE;
+ arg += strlen("ngle=");
+ } else if (c == 'c' && strprefix(arg, "olor_scheme=")) {
+ c = OPT_COLOR_SCHEME;
+ arg += strlen("olor_scheme=");
+ } else if (c == 'r' && strprefix(arg, "andom_seed=")) {
+ c = OPT_RANDOM_SEED;
+ arg += strlen("andom_seed=");
+ } else if (c == 'l' && strprefix(arg, "ightness=")) {
+ c = OPT_LIGHTNESS;
+ arg += strlen("ightness=");
+ } else if (c == 's' && strprefix(arg, "hare_endpoint")) {
+ c = OPT_SHARE_ENDPOINT;
+ }
+
+ switch (c) {
+
+ // any valid use of these options should have been handled as legacy above
+ case 'a':
+ case 'c':
case 'r':
- if (strncmp(optarg,"andom_seed=", 11) == 0){
- if (sscanf(optarg+11, "%d", seed) != 1){
- fprintf(stderr,"-random_seed option must be a positive integer.\n");
- usage(cmd, 1);
- }
+ case 'l':
+ fprintf(stderr, "option -%c unrecognized.\n", c);
+ usage(cmd, EXIT_FAILURE);
+ UNREACHABLE();
+
+ case '?':
+ if (optopt == '\0' || optopt == '?') {
+ usage(cmd, EXIT_SUCCESS);
}
- break;
- case 'a':
- if (strncmp(optarg,"ccuracy=", 8) == 0){
- sscanf(optarg+8, "%lf", accuracy);
- if (*accuracy <= 0) {
- fprintf(stderr,"-accuracy option must be a positive real number.\n");
- usage(cmd, 1);
- }
- } else if (strncmp(optarg,"ngle=", 5) == 0){
- sscanf(optarg+5, "%lf", angle);
- if (*angle <= 0 || *angle >= 90) {
- fprintf(stderr,"-angle option must be a positive real number between 0 to 90.\n");
- usage(cmd, 1);
- }
- } else {
- fprintf(stderr,"-accuracy option must contain a positive real.\n");
- usage(cmd, 1);
+ fprintf(stderr, "option -%c unrecognized.\n", optopt);
+ usage(cmd, EXIT_FAILURE);
+ UNREACHABLE();
+
+ case 'o':
+ if (outfile != NULL) {
+ fclose(outfile);
}
+ outfile = openFile(arg, "w", CmdName);
break;
- case 'c':
- if (strncmp(optarg,"olor_scheme=", 12) == 0){
- if (knownColorScheme(optarg + 12))
- *color_scheme = optarg+12;
- else {
- fprintf(stderr,"-color_scheme option must be a valid string\n");
- usage(cmd, 1);
- }
- } else {
- usage(cmd, 1);
+
+ case 'v':
+ Verbose = TRUE;
+ break;
+
+ case OPT_ACCURACY:
+ if (sscanf(arg, "%lf", accuracy) != 1 || *accuracy <= 0) {
+ fprintf(stderr, "--accuracy option must be a positive real number.\n");
+ usage(cmd, EXIT_FAILURE);
}
break;
- case 'l':{
- int l1 = 0, l2 = 70;
- if (strncmp(optarg,"ightness=", 9) == 0 && sscanf(optarg + 9, "%d,%d", &l1, &l2) == 2){
- if (l1 < 0 || l2 > 100 || l1 > l2){
- fprintf(stderr,"invalid -lightness=%s option.\n", optarg + 9);
- usage(cmd, 1);
- }
- free(*lightness);
- *lightness = malloc(sizeof(char)*10);
- strcpy(*lightness, optarg + 9);
- } else {
- usage(cmd, 1);
+
+ case OPT_ANGLE:
+ if (sscanf(arg, "%lf", angle) != 1 || *angle <= 0 || *angle >= 90) {
+ fprintf(stderr, "--angle option must be a positive real number "
+ "between 0 and 90.\n");
+ usage(cmd, EXIT_FAILURE);
}
break;
- }
- case 'v':
- Verbose = TRUE;
+
+ case OPT_COLOR_SCHEME:
+ if (!knownColorScheme(arg)) {
+ fprintf(stderr,
+ "--color_scheme option must be a known color scheme.\n");
+ usage(cmd, EXIT_FAILURE);
+ }
break;
- case 'o':
- if (outfile != NULL)
- fclose(outfile);
- outfile = openFile(optarg, "w", CmdName);
+
+ case OPT_LIGHTNESS: {
+ int l1 = 0;
+ int l2 = 70;
+ if (sscanf(arg, "%d,%d", &l1, &l2) != 2 || l1 < 0 || l2 > 100 ||
+ l1 > l2) {
+ fprintf(stderr, "invalid --lightness=%s option.\n", arg);
+ usage(cmd, EXIT_FAILURE);
+ }
+ free(*lightness);
+ *lightness = strdup(arg);
break;
- case '?':
- if (optopt == '\0' || optopt == '?')
- usage(cmd, 0);
- else {
- fprintf(stderr, "option -%c unrecognized\n",
- optopt);
- usage(cmd, 1);
+ }
+
+ case OPT_RANDOM_SEED:
+ if (sscanf(arg, "%d", seed) != 1) {
+ fprintf(stderr, "--random_seed option must be an integer.\n");
+ usage(cmd, EXIT_FAILURE);
}
break;
+
+ case OPT_SHARE_ENDPOINT:
+ *check_edges_with_same_endpoint = 1;
+ break;
+
+ default:
+ UNREACHABLE();
}
}
- argv += optind;
- argc -= optind;
-
- if (argc)
- *infile = argv[0];
-
- if (argc > 0) Files = argv;
- if (!outfile) outfile = stdout;
+ if (argc > optind) {
+ *infile = argv[optind];
+ Files = argv + optind;
+ }
+ if (outfile == NULL) {
+ outfile = stdout;
+ }
}
projects / graphviz / commitdiff