/** Print the given string to the given FILE, assuming the given output
column width. Break words as needed to avoid words spilling past the
last column. */
static void
lPrintWithWordBreaks(const char *buf, int columnWidth, FILE *out) {
#ifdef ISPC_IS_WINDOWS
fputs(buf, out);
#else
int column = 0;
assert(strchr(buf, ':') != NULL);
int indent = strchr(buf, ':') - buf + 2;
int width = std::max(40, columnWidth - 2);
// Collect everything into a string and print it all at once at the end
// -> try to avoid troubles with mangled error messages with
// multi-threaded builds.
std::string outStr;
const char *msgPos = buf;
while (true) {
while (*msgPos != '\0' && isspace(*msgPos))
++msgPos;
if (*msgPos == '\0')
break;
const char *wordEnd = lFindWordEnd(msgPos);
if (column > indent && column + wordEnd - msgPos > width) {
// This word would overflow, so start a new line
column = indent;
outStr.push_back('\n');
// Indent to the same column as the ":" at the start of the
// message
for (int i = 0; i < indent; ++i)
outStr.push_back(' ');
}
// Finally go and copy the word
while (msgPos != wordEnd) {
outStr.push_back(*msgPos++);
++column;
}
outStr.push_back(' ');
++column;
}
outStr.push_back('\n');
fputs(outStr.c_str(), out);
#endif
}
/** Print the given string to the given FILE, assuming the given output
column width. Break words as needed to avoid words spilling past the
last column. */
void
PrintWithWordBreaks(const char *buf, int indent, int columnWidth, FILE *out) {
#ifdef ISPC_IS_WINDOWS
fputs(buf, out);
fputs("\n", out);
#else
int column = 0;
int width = std::max(40, columnWidth - 2);
// Collect everything into a string and print it all at once at the end
// -> try to avoid troubles with mangled error messages with
// multi-threaded builds.
std::string outStr;
const char *msgPos = buf;
while (true) {
if (*msgPos == '\033') {
// handle ANSI color escape: copy it to the output buffer
// without charging for the characters it uses
do {
outStr.push_back(*msgPos++);
} while (*msgPos != '\0' && *msgPos != 'm');
continue;
}
else if (*msgPos == '\n') {
// Handle newlines cleanly
column = indent;
outStr.push_back('\n');
for (int i = 0; i < indent; ++i)
outStr.push_back(' ');
// Respect spaces after newlines
++msgPos;
while (*msgPos == ' ') {
outStr.push_back(' ');
++msgPos;
}
continue;
}
while (*msgPos != '\0' && isspace(*msgPos))
++msgPos;
if (*msgPos == '\0')
break;
const char *wordEnd = lFindWordEnd(msgPos);
if (column > indent && column + wordEnd - msgPos > width) {
// This word would overflow, so start a new line
column = indent;
outStr.push_back('\n');
// Indent to the same column as the ":" at the start of the
// message.
for (int i = 0; i < indent; ++i)
outStr.push_back(' ');
}
// Finally go and copy the word
while (msgPos != wordEnd) {
outStr.push_back(*msgPos++);
++column;
}
outStr.push_back(' ');
++column;
}
outStr.push_back('\n');
fputs(outStr.c_str(), out);
#endif
}
