X-Git-Url: https://sigrok.org/gitweb/?p=sigrok-cli.git;a=blobdiff_plain;f=parsers.c;h=1dfc16cba283f039280b30761e04b07c9b757312;hp=80015f58a8291d9e2cb337aecbce386bf196967d;hb=f1f703bf0dc63e2b6149f4cfba294253991d04f7;hpb=1e0f9ed9b98d05dad480098668882b554dbfd1d9

diff --git a/parsers.c b/parsers.c
index 80015f5..1dfc16c 100644
--- a/parsers.c
+++ b/parsers.c
@@ -22,83 +22,132 @@
 #include <stdint.h>
 #include <string.h>
 #include <glib.h>
-#include <sigrok.h>
+#include <libsigrok/libsigrok.h>
 #include "sigrok-cli.h"
 
-char **parse_probestring(int max_probes, const char *probestring)
+struct sr_probe *find_probe(GSList *probelist, const char *probename)
 {
-	int tmp, b, e, i;
-	char **tokens, **range, **probelist, *name, str[8];
-	gboolean error;
+	struct sr_probe *probe;
+	GSList *l;
 
-	error = FALSE;
-	range = NULL;
-	if (!(probelist = g_try_malloc0(max_probes * sizeof(char *)))) {
-		/* TODO: Handle errors. */
+	probe = NULL;
+	for (l = probelist; l; l = l->next) {
+		probe = l->data;
+		if (!strcmp(probe->name, probename))
+			break;
 	}
-	tokens = g_strsplit(probestring, ",", max_probes);
+	probe = l ? l->data : NULL;
+
+	return probe;
+}
+
+GSList *parse_probestring(struct sr_dev_inst *sdi, const char *probestring)
+{
+	struct sr_probe *probe;
+	GSList *probelist;
+	int ret, n, b, e, i;
+	char **tokens, **range, **names, *eptr, str[8];
+
+	if (!probestring || !probestring[0])
+		/* All probes are enabled by default by the driver. */
+		return NULL;
 
+	ret = SR_OK;
+	range = NULL;
+	probelist = NULL;
+	tokens = g_strsplit(probestring, ",", 0);
 	for (i = 0; tokens[i]; i++) {
+		if (tokens[i][0] == '\0') {
+			g_critical("Invalid empty probe.");
+			ret = SR_ERR;
+			break;
+		}
 		if (strchr(tokens[i], '-')) {
-			/* A range of probes in the form 1-5. */
+			/* A range of probes in the form a-b. This will only work
+			 * if the probes are named as numbers -- so every probe
+			 * in the range must exist as a probe name string in the
+			 * device. */
 			range = g_strsplit(tokens[i], "-", 2);
 			if (!range[0] || !range[1] || range[2]) {
 				/* Need exactly two arguments. */
-				printf("Invalid probe syntax '%s'.\n",
-				       tokens[i]);
-				error = TRUE;
+				g_critical("Invalid probe syntax '%s'.", tokens[i]);
+				ret = SR_ERR;
 				break;
 			}
 
-			b = strtol(range[0], NULL, 10);
+			b = strtol(range[0], &eptr, 10);
+			if (eptr == range[0] || *eptr != '\0') {
+				g_critical("Invalid probe '%s'.", range[0]);
+				ret = SR_ERR;
+				break;
+			}
 			e = strtol(range[1], NULL, 10);
-			if (b < 1 || e > max_probes || b >= e) {
-				printf("Invalid probe range '%s'.\n",
-				       tokens[i]);
-				error = TRUE;
+			if (eptr == range[1] || *eptr != '\0') {
+				g_critical("Invalid probe '%s'.", range[1]);
+				ret = SR_ERR;
+				break;
+			}
+			if (b < 0 || b >= e) {
+				g_critical("Invalid probe range '%s'.", tokens[i]);
+				ret = SR_ERR;
 				break;
 			}
 
 			while (b <= e) {
-				snprintf(str, 7, "%d", b);
-				probelist[b - 1] = g_strdup(str);
+				n = snprintf(str, 8, "%d", b);
+				if (n < 0 || n > 8) {
+					g_critical("Invalid probe '%d'.", b);
+					ret = SR_ERR;
+					break;
+				}
+				probe = find_probe(sdi->probes, str);
+				if (!probe) {
+					g_critical("unknown probe '%d'.", b);
+					ret = SR_ERR;
+					break;
+				}
+				probelist = g_slist_append(probelist, probe);
 				b++;
 			}
+			if (ret != SR_OK)
+				break;
 		} else {
-			tmp = strtol(tokens[i], NULL, 10);
-			if (tmp < 1 || tmp > max_probes) {
-				printf("Invalid probe %d.\n", tmp);
-				error = TRUE;
+			names = g_strsplit(tokens[i], "=", 2);
+			if (!names[0] || (names[1] && names[2])) {
+				/* Need one or two arguments. */
+				g_critical("Invalid probe '%s'.", tokens[i]);
+				ret = SR_ERR;
 				break;
 			}
 
-			if ((name = strchr(tokens[i], '='))) {
-				probelist[tmp - 1] = g_strdup(++name);
-				if (strlen(probelist[tmp - 1]) > SR_MAX_PROBENAME_LEN)
-					probelist[tmp - 1][SR_MAX_PROBENAME_LEN] = 0;
-			} else {
-				snprintf(str, 7, "%d", tmp);
-				probelist[tmp - 1] = g_strdup(str);
+			probe = find_probe(sdi->probes, names[0]);
+			if (!probe) {
+				g_critical("unknown probe '%s'.", names[0]);
+				ret = SR_ERR;
+				break;
+			}
+			if (names[1]) {
+				/* Rename probe. */
+				g_free(probe->name);
+				probe->name = g_strdup(names[1]);
 			}
+			probelist = g_slist_append(probelist, probe);
 		}
 	}
+	if (range)
+		g_strfreev(range);
 
-	if (error) {
-		for (i = 0; i < max_probes; i++)
-			if (probelist[i])
-				g_free(probelist[i]);
-		g_free(probelist);
+	if (ret != SR_OK) {
+		g_slist_free(probelist);
 		probelist = NULL;
 	}
 
 	g_strfreev(tokens);
-	if (range)
-		g_strfreev(range);
 
 	return probelist;
 }
 
-GHashTable *parse_generic_arg(const char *arg)
+GHashTable *parse_generic_arg(const char *arg, gboolean sep_first)
 {
 	GHashTable *hash;
 	int i;
@@ -107,10 +156,14 @@ GHashTable *parse_generic_arg(const char *arg)
 	if (!arg || !arg[0])
 		return NULL;
 
-	hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
+	i = 0;
+	hash = g_hash_table_new_full(g_str_hash, g_str_equal,
+			g_free, g_free);
 	elements = g_strsplit(arg, ":", 0);
-	g_hash_table_insert(hash, g_strdup("sigrok_key"), g_strdup(elements[0]));
-	for (i = 1; elements[i]; i++) {
+	if (sep_first)
+		g_hash_table_insert(hash, g_strdup("sigrok_key"),
+				g_strdup(elements[i++]));
+	for (; elements[i]; i++) {
 		e = strchr(elements[i], '=');
 		if (!e)
 			g_hash_table_insert(hash, g_strdup(elements[i]), NULL);
@@ -124,63 +177,33 @@ GHashTable *parse_generic_arg(const char *arg)
 	return hash;
 }
 
-struct sr_dev *parse_devstring(const char *devstring)
+char *strcanon(const char *str)
 {
-	struct sr_dev *dev, *d;
-	struct sr_dev_plugin *plugin;
-	GSList *devs, *plugins, *l, *p;
-	int num_devs, dev_num, dev_cnt;
-	char *tmp;
+	int p0, p1;
+	char *s;
+
+	/* Returns newly allocated string. */
+	s = g_ascii_strdown(str, -1);
+	for (p0 = p1 = 0; str[p0]; p0++) {
+		if ((s[p0] >= 'a' && s[p0] <= 'z')
+				|| (s[p0] >= '0' && s[p0] <= '9'))
+			s[p1++] = s[p0];
+	}
+	s[p1] = '\0';
 
-	if (!devstring)
-		return NULL;
+	return s;
+}
 
-	dev = NULL;
-	dev_num = strtol(devstring, &tmp, 10);
-	if (tmp != devstring) {
-		/* argument is numeric, meaning a device ID. Make all driver
-		 * plugins scan for devices.
-		 */
-		num_devs = num_real_devs();
-		if (dev_num < 0 || dev_num >= num_devs)
-			return NULL;
-
-		dev_cnt = 0;
-		devs = sr_dev_list();
-		for (l = devs; l; l = l->next) {
-			d = l->data;
-			if (sr_dev_has_hwcap(d, SR_HWCAP_DEMO_DEV))
-				continue;
-			if (dev_cnt == dev_num) {
-				if (dev_num == dev_cnt) {
-					dev = d;
-					break;
-				}
-			}
-			dev_cnt++;
-		}
-	} else {
-		/* select device by driver -- only initialize that driver,
-		 * no need to let them all scan
-		 */
-		dev = NULL;
-		plugins = sr_hw_list();
-		for (p = plugins; p; p = p->next) {
-			plugin = p->data;
-			if (strcmp(plugin->name, devstring))
-				continue;
-			num_devs = sr_hw_init(plugin);
-			if (num_devs == 1) {
-				devs = sr_dev_list();
-				dev = devs->data;
-			} else if (num_devs > 1) {
-				printf("driver '%s' found %d devices, select by ID instead.\n",
-						devstring, num_devs);
-			}
-			/* fall through: selected driver found no devices */
-			break;
-		}
-	}
+int canon_cmp(const char *str1, const char *str2)
+{
+	int ret;
+	char *s1, *s2;
+
+	s1 = strcanon(str1);
+	s2 = strcanon(str2);
+	ret = g_ascii_strcasecmp(s1, s2);
+	g_free(s2);
+	g_free(s1);
 
-	return dev;
+	return ret;
 }