From be3350c620036306fb5f2db3535cb110f187d5e8 Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 周三, 24 9月 2014 23:46:36 +0800
Subject: [PATCH] Refactor token_t and token_type_t to have scpi_ prefix
---
libscpi/src/utils.c | 75 ++++++++++++++++++++++++++++++-------
1 files changed, 60 insertions(+), 15 deletions(-)
diff --git a/libscpi/src/utils.c b/libscpi/src/utils.c
index 78b7efe..922b870 100644
--- a/libscpi/src/utils.c
+++ b/libscpi/src/utils.c
@@ -41,7 +41,7 @@
#include <string.h>
#include <ctype.h>
-#include "utils.h"
+#include "utils_private.h"
static size_t patternSeparatorShortPos(const char * pattern, size_t len);
static size_t patternSeparatorPos(const char * pattern, size_t len);
@@ -148,7 +148,7 @@
* @param len2
* @return TRUE if len1==len2 and "len" characters of both strings are equal
*/
-bool_t compareStr(const char * str1, size_t len1, const char * str2, size_t len2) {
+scpi_bool_t compareStr(const char * str1, size_t len1, const char * str2, size_t len2) {
if (len1 != len2) {
return FALSE;
}
@@ -158,6 +158,36 @@
}
return FALSE;
+}
+
+/**
+ * Compare two strings, one be longer but may contains only numbers in that section
+ * @param str1
+ * @param len1
+ * @param str2
+ * @param len2
+ * @return TRUE if strings match
+ */
+scpi_bool_t compareStrAndNum(const char * str1, size_t len1, const char * str2, size_t len2) {
+ scpi_bool_t result = FALSE;
+ size_t i;
+
+ if (len2 < len1) {
+ return FALSE;
+ }
+
+ if (SCPI_strncasecmp(str1, str2, len1) == 0) {
+ result = TRUE;
+ }
+
+ for (i = len1; i<len2; i++) {
+ if (!isdigit(str2[i])) {
+ result = FALSE;
+ break;
+ }
+ }
+
+ return result;
}
/**
@@ -235,23 +265,37 @@
* @param str_len
* @return
*/
-bool_t matchPattern(const char * pattern, size_t pattern_len, const char * str, size_t str_len) {
- int pattern_sep_pos_short = patternSeparatorShortPos(pattern, pattern_len);
- return compareStr(pattern, pattern_len, str, str_len) ||
- compareStr(pattern, pattern_sep_pos_short, str, str_len);
+scpi_bool_t matchPattern(const char * pattern, size_t pattern_len, const char * str, size_t str_len) {
+ int pattern_sep_pos_short;
+
+ if (pattern[pattern_len - 1] == '#') {
+ size_t new_pattern_len = pattern_len - 1;
+
+ pattern_sep_pos_short = patternSeparatorShortPos(pattern, new_pattern_len);
+
+ return compareStrAndNum(pattern, new_pattern_len, str, str_len) ||
+ compareStrAndNum(pattern, pattern_sep_pos_short, str, str_len);
+ } else {
+
+ pattern_sep_pos_short = patternSeparatorShortPos(pattern, pattern_len);
+
+ return compareStr(pattern, pattern_len, str, str_len) ||
+ compareStr(pattern, pattern_sep_pos_short, str, str_len);
+ }
}
/**
* Compare pattern and command
- * @param pattern
+ * @param pattern eg. [:MEASure]:VOLTage:DC?
* @param cmd - command
* @param len - max search length
* @return TRUE if pattern matches, FALSE otherwise
*/
-bool_t matchCommand(const char * pattern, const char * cmd, size_t len) {
- bool_t result = FALSE;
+scpi_bool_t matchCommand(const char * pattern, const char * cmd, size_t len) {
+ scpi_bool_t result = FALSE;
int leftFlag = 0; // flag for '[' on left
int rightFlag = 0; // flag for ']' on right
+ int cmd_sep_pos = 0;
const char * pattern_ptr = pattern;
int pattern_len = strlen(pattern);
@@ -261,7 +305,7 @@
size_t cmd_len = SCPI_strnlen(cmd, len);
const char * cmd_end = cmd + cmd_len;
- /* TODO: now support optional keywords in pattern style, e.g. [:MEASure]:VOLTage:DC? */
+ /* now support optional keywords in pattern style, e.g. [:MEASure]:VOLTage:DC? */
if (pattern_ptr[0] == '[') { // skip first '['
pattern_len--;
pattern_ptr++;
@@ -272,16 +316,17 @@
pattern_ptr++;
}
- /* errornouse ":*IDN?" is handled in parser */
if (cmd_ptr[0] == ':') {
- cmd_len--;
- cmd_ptr++;
+ /* handle errornouse ":*IDN?" */
+ if((cmd_len >= 2) && (cmd_ptr[1] != '*')) {
+ cmd_len--;
+ cmd_ptr++;
+ }
}
while (1) {
int pattern_sep_pos = patternSeparatorPos(pattern_ptr, pattern_end - pattern_ptr);
- int cmd_sep_pos;
-
+
if ((leftFlag > 0) && (rightFlag > 0)) {
leftFlag--;
rightFlag--;
--
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