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Improve MSVC DEBUG output.

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Previous only output the first 8 characters, followed by an elipse if more
than 8. Now return first up to 19 chars. If nore than 19, return first 8,
followed by an elipse, followed by the last 8 characters.

This is in the get_text_string service, which is only used if MSVC and not
NDEBUG.
This commit is contained in:
Geoff McLane 2016-02-14 18:11:57 +01:00
parent c66bb848f2
commit a4f425546f
1 changed files with 67 additions and 24 deletions
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61
src/lexer.c
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@ -52,7 +52,7 @@
static void check_me(char *name); static void check_me(char *name);
static Bool show_attrs = yes; static Bool show_attrs = yes;
#define MX_TXT 8 #define MX_TXT 8
static char buffer[MX_TXT+8]; /* NOTE extra for '...'\0 tail */ static char buffer[(MX_TXT*4)+8]; /* NOTE extra for '...'\0 tail */
static tmbstr get_text_string(Lexer* lexer, Node *node) static tmbstr get_text_string(Lexer* lexer, Node *node)
{ {
uint len = node->end - node->start; uint len = node->end - node->start;
@ -61,13 +61,14 @@ static tmbstr get_text_string(Lexer* lexer, Node *node)
unsigned char c; unsigned char c;
uint i = 0; uint i = 0;
Bool insp = no; Bool insp = no;
buffer[0] = (char)0; if (len <= ((MX_TXT * 2) + 3)) {
buffer[0] = 0;
while (cp < end) { while (cp < end) {
c = *cp; c = *cp;
cp++;
if (c == '\n') { if (c == '\n') {
buffer[i++] = '\\'; buffer[i++] = '\\';
buffer[i++] = 'n'; buffer[i++] = 'n';
insp = yes;
} else if ( c == ' ' ) { } else if ( c == ' ' ) {
if (!insp) if (!insp)
buffer[i++] = c; buffer[i++] = c;
@ -76,16 +77,58 @@ static tmbstr get_text_string(Lexer* lexer, Node *node)
buffer[i++] = c; buffer[i++] = c;
insp = no; insp = no;
} }
}
} else {
char *end1 = cp + MX_TXT;
char *bgn = cp + (len - MX_TXT);
buffer[0] = 0;
if (bgn < end1)
bgn = end1;
while (cp < end1) {
c = *cp;
cp++; cp++;
if (c == '\n') {
buffer[i++] = '\\';
buffer[i++] = 'n';
} else if ( c == ' ' ) {
if (!insp)
buffer[i++] = c;
insp = yes;
} else {
buffer[i++] = c;
insp = no;
}
if (i >= MX_TXT) if (i >= MX_TXT)
break; break;
} }
if (i < len) { c = '.';
buffer[i++] = '.'; if ((i < len)&&(cp < bgn)) {
if (i < len) { buffer[i++] = c;
buffer[i++] = '.'; cp++;
if (i < len) { if ((i < len)&&(cp < bgn)) {
buffer[i++] = '.'; buffer[i++] = c;
cp++;
if ((i < len)&&(cp < bgn)) {
buffer[i++] = c;
cp++;
}
}
}
cp = bgn;
insp = no;
while (cp < end) {
c = *cp;
cp++;
if (c == '\n') {
buffer[i++] = '\\';
buffer[i++] = 'n';
} else if ( c == ' ' ) {
if (!insp)
buffer[i++] = c;
insp = yes;
} else {
buffer[i++] = c;
insp = no;
} }
} }
} }