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**
** This file contains code used to format and print comments or other
** text on a TTY.
*/
#include "config.h"
#include "comformat.h"
#include <assert.h>
#ifdef _WIN32
# include <windows.h>
#else
# include <termios.h>
# include <sys/ioctl.h>
#endif
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**
** This file contains code used to format and print comments or other
** text on a TTY.
*/
#include "config.h"
#include "comformat.h"
#include <assert.h>
#if INTERFACE
#define COMMENT_PRINT_NONE ((u32)0x00000000) /* No flags = non-legacy. */
#define COMMENT_PRINT_LEGACY ((u32)0x00000001) /* Use legacy algorithm. */
#define COMMENT_PRINT_TRIM_CRLF ((u32)0x00000002) /* Trim leading CR/LF. */
#define COMMENT_PRINT_TRIM_SPACE ((u32)0x00000004) /* Trim leading/trailing. */
#define COMMENT_PRINT_WORD_BREAK ((u32)0x00000008) /* Break lines on words. */
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** returned to indicate the terminal line width is using the hard-coded
** legacy default value.
*/
static int comment_set_maxchars(
int indent,
int *pMaxChars
){
#if defined(_WIN32)
CONSOLE_SCREEN_BUFFER_INFO csbi;
memset(&csbi, 0, sizeof(CONSOLE_SCREEN_BUFFER_INFO));
if( GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi) ){
*pMaxChars = csbi.srWindow.Right - csbi.srWindow.Left - indent;
return 1;
return 0;
#elif defined(TIOCGWINSZ)
struct winsize w;
memset(&w, 0, sizeof(struct winsize));
if( ioctl(0, TIOCGWINSZ, &w)!=-1 ){
*pMaxChars = w.ws_col - indent;
}
return 0;
#else
/*
** 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.
*/
*pMaxChars = COMMENT_LEGACY_LINE_LENGTH - indent;
return -1;
#endif
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** returned to indicate the terminal line width is using the hard-coded
** legacy default value.
*/
static int comment_set_maxchars(
int indent,
int *pMaxChars
){
struct TerminalSize ts;
if ( !terminal_get_size(&ts) ){
return 0;
}
if( ts.nColumns ){
*pMaxChars = ts.nColumns - indent;
return 1;
}else{
/*
** 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.
*/
*pMaxChars = COMMENT_LEGACY_LINE_LENGTH - indent;
return -1;
}
}
/*
** This function checks the current line being printed against the original
** comment text. Upon matching, it updates the provided character and line
** counts, if applicable. The caller needs to emit a new line, if desired.
*/
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