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|
** needed to specify a default maximum line length to be used with the
** comment_print() function.
*/
#ifndef COMMENT_LEGACY_LINE_LENGTH
# define COMMENT_LEGACY_LINE_LENGTH (78)
#endif
/*
** This is the number of spaces to print when a tab character is seen.
*/
#ifndef COMMENT_TAB_WIDTH
# define COMMENT_TAB_WIDTH (8)
#endif
/*
** Given a comment string zText, format that string for printing
** on a TTY. Assume that the output cursors is indent spaces from
** the left margin and that a single line can contain no more than
** lineLength characters. Indent all subsequent lines by indent.
** width characters. Indent all subsequent lines by indent.
**
** Return the number of newlines that are output.
*/
int comment_print(const char *zText, int indent, int lineLength){
int tlen = lineLength - indent;
int len = 0, doIndent = 0, lineCnt = 0;
int comment_print(const char *zText, int indent, int width){
int maxChars = width - indent;
int lineCnt = 0;
const char *zLine;
#if defined(_WIN32)
if( lineLength<0 ){
if( width<0 ){
CONSOLE_SCREEN_BUFFER_INFO csbi;
memset(&csbi, 0, sizeof(CONSOLE_SCREEN_BUFFER_INFO));
if( GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi) ){
tlen = csbi.srWindow.Right - csbi.srWindow.Left - indent;
maxChars = csbi.srWindow.Right - csbi.srWindow.Left - indent;
}
}
#elif defined(TIOCGWINSZ)
if( lineLength<0 ){
if( width<0 ){
struct winsize w;
memset(&w, 0, sizeof(struct winsize));
if( ioctl(0, TIOCGWINSZ, &w)!=-1 ){
tlen = w.ws_col - indent;
maxChars = w.ws_col - indent;
}
}
#else
if( lineLength<0 ){
if( width<0 ){
/*
** Fallback to using more-or-less the "legacy semantics" of hard-coding
** the maximum line length to a value reasonable for the vast majority
** of supported systems.
*/
tlen = COMMENT_LEGACY_LINE_LENGTH - indent;
maxChars = COMMENT_LEGACY_LINE_LENGTH - indent;
}
#endif
if( zText==0 ) zText = "(NULL)";
if( tlen<=0 ){
tlen = strlen(zText);
if( maxChars<=0 ){
maxChars = strlen(zText);
}
while( fossil_isspace(zText[0]) ){ zText++; }
if( zText[0]==0 ){
if( !doIndent ){
fossil_print("\n");
lineCnt++;
}
if( zText[0]==0 ){
if( doIndent ){
fossil_print("%*s", indent, "");
}
fossil_print("%.*s", (int)(zText - zLine), zLine);
if( fossil_force_newline() ){
lineCnt++;
}
break;
}
len += ((zText[0]=='\t') ? 8 : 1);
if( zText[0]=='\n' || len>=tlen ){
const char *zNewLine;
if( doIndent ){
fossil_print("%*s", indent, "");
}
doIndent = 1;
zNewLine = zText + 1;
while( zText>zLine && !fossil_isspace(zText[0]) ){ zText--; }
if( zText>zLine ){
fossil_print("%.*s", (int)(zText - zLine), zLine);
zLine = zText;
}else{
fossil_print("%.*s", (int)(zNewLine - zLine), zLine);
zLine = zNewLine;
}
if( fossil_force_newline() ){
lineCnt++;
}
if( !zLine++ ) break;
len = 0;
}
zText++;
|