Browse Source
based on old git implementation (2009) Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>master
Tanguy Pruvot
10 years ago
6 changed files with 429 additions and 2 deletions
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@@ -0,0 +1,384 @@
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/**
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* Old Git implementation of windows terminal colors (2009) |
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* before use of a threaded wrapper. |
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*/ |
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#undef NOGDI |
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#include <windows.h> |
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#include <wingdi.h> |
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#include <winreg.h> |
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#include <malloc.h> |
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#include <stdio.h> |
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#include <io.h> |
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#include "compat/winansi.h" |
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/*
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* Copyright 2008 Peter Harris <git@peter.is-a-geek.org> |
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*/ |
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/*
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Functions to be wrapped: |
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*/ |
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#undef printf |
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#undef fprintf |
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#undef fputs |
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#undef vfprintf |
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/* TODO: write */ |
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/*
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ANSI codes used by git: m, K |
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This file is git-specific. Therefore, this file does not attempt |
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to implement any codes that are not used by git. |
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*/ |
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static HANDLE console; |
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static WORD plain_attr; |
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static WORD attr; |
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static int negative; |
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static void init(void) |
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{ |
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CONSOLE_SCREEN_BUFFER_INFO sbi; |
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static int initialized = 0; |
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if (initialized) |
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return; |
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console = GetStdHandle(STD_OUTPUT_HANDLE); |
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if (console == INVALID_HANDLE_VALUE) |
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console = NULL; |
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if (!console) |
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return; |
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GetConsoleScreenBufferInfo(console, &sbi); |
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attr = plain_attr = sbi.wAttributes; |
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negative = 0; |
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initialized = 1; |
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} |
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static int write_console(const char *str, int len) |
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{ |
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/* convert utf-8 to utf-16, write directly to console */ |
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int wlen = MultiByteToWideChar(CP_UTF8, 0, str, len, NULL, 0); |
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wchar_t *wbuf = (wchar_t *)alloca(wlen * sizeof(wchar_t)); |
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MultiByteToWideChar(CP_UTF8, 0, str, len, wbuf, wlen); |
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WriteConsoleW(console, wbuf, wlen, NULL, NULL); |
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/* return original (utf-8 encoded) length */ |
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return len; |
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} |
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#define FOREGROUND_ALL (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE) |
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#define BACKGROUND_ALL (BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE) |
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static void set_console_attr(void) |
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{ |
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WORD attributes = attr; |
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if (negative) { |
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attributes &= ~FOREGROUND_ALL; |
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attributes &= ~BACKGROUND_ALL; |
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/* This could probably use a bitmask
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instead of a series of ifs */ |
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if (attr & FOREGROUND_RED) |
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attributes |= BACKGROUND_RED; |
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if (attr & FOREGROUND_GREEN) |
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attributes |= BACKGROUND_GREEN; |
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if (attr & FOREGROUND_BLUE) |
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attributes |= BACKGROUND_BLUE; |
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if (attr & BACKGROUND_RED) |
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attributes |= FOREGROUND_RED; |
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if (attr & BACKGROUND_GREEN) |
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attributes |= FOREGROUND_GREEN; |
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if (attr & BACKGROUND_BLUE) |
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attributes |= FOREGROUND_BLUE; |
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} |
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SetConsoleTextAttribute(console, attributes); |
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} |
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static void erase_in_line(void) |
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{ |
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CONSOLE_SCREEN_BUFFER_INFO sbi; |
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DWORD dummy; /* Needed for Windows 7 (or Vista) regression */ |
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if (!console) |
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return; |
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GetConsoleScreenBufferInfo(console, &sbi); |
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FillConsoleOutputCharacterA(console, ' ', |
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sbi.dwSize.X - sbi.dwCursorPosition.X, sbi.dwCursorPosition, |
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&dummy); |
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} |
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static const char *set_attr(const char *str) |
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{ |
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const char *func; |
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size_t len = strspn(str, "0123456789;"); |
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func = str + len; |
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switch (*func) { |
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case 'm': |
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do { |
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long val = strtol(str, (char **)&str, 10); |
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switch (val) { |
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case 0: /* reset */ |
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attr = plain_attr; |
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negative = 0; |
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break; |
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case 1: /* bold */ |
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attr |= FOREGROUND_INTENSITY; |
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break; |
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case 2: /* faint */ |
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case 22: /* normal */ |
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attr &= ~FOREGROUND_INTENSITY; |
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break; |
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case 3: /* italic */ |
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/* Unsupported */ |
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break; |
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case 4: /* underline */ |
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case 21: /* double underline */ |
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/* Wikipedia says this flag does nothing */ |
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/* Furthermore, mingw doesn't define this flag
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attr |= COMMON_LVB_UNDERSCORE; */ |
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break; |
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case 24: /* no underline */ |
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/* attr &= ~COMMON_LVB_UNDERSCORE; */ |
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break; |
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case 5: /* slow blink */ |
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case 6: /* fast blink */ |
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/* We don't have blink, but we do have
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background intensity */ |
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attr |= BACKGROUND_INTENSITY; |
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break; |
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case 25: /* no blink */ |
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attr &= ~BACKGROUND_INTENSITY; |
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break; |
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case 7: /* negative */ |
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negative = 1; |
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break; |
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case 27: /* positive */ |
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negative = 0; |
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break; |
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case 8: /* conceal */ |
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case 28: /* reveal */ |
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/* Unsupported */ |
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break; |
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case 30: /* Black */ |
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attr &= ~FOREGROUND_ALL; |
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break; |
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case 31: /* Red */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= FOREGROUND_RED; |
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break; |
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case 32: /* Green */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= FOREGROUND_GREEN; |
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break; |
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case 33: /* Yellow */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= FOREGROUND_RED | FOREGROUND_GREEN; |
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break; |
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case 34: /* Blue */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= FOREGROUND_BLUE; |
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break; |
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case 35: /* Magenta */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= FOREGROUND_RED | FOREGROUND_BLUE; |
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break; |
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case 36: /* Cyan */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= FOREGROUND_GREEN | FOREGROUND_BLUE; |
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break; |
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case 37: /* White */ |
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attr |= FOREGROUND_RED | |
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FOREGROUND_GREEN | |
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FOREGROUND_BLUE; |
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break; |
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case 38: /* Unknown */ |
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break; |
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case 39: /* reset */ |
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attr &= ~FOREGROUND_ALL; |
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attr |= (plain_attr & FOREGROUND_ALL); |
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break; |
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case 40: /* Black */ |
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attr &= ~BACKGROUND_ALL; |
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break; |
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case 41: /* Red */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= BACKGROUND_RED; |
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break; |
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case 42: /* Green */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= BACKGROUND_GREEN; |
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break; |
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case 43: /* Yellow */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= BACKGROUND_RED | BACKGROUND_GREEN; |
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break; |
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case 44: /* Blue */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= BACKGROUND_BLUE; |
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break; |
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case 45: /* Magenta */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= BACKGROUND_RED | BACKGROUND_BLUE; |
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break; |
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case 46: /* Cyan */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= BACKGROUND_GREEN | BACKGROUND_BLUE; |
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break; |
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case 47: /* White */ |
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attr |= BACKGROUND_RED | |
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BACKGROUND_GREEN | |
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BACKGROUND_BLUE; |
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break; |
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case 48: /* Unknown */ |
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break; |
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case 49: /* reset */ |
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attr &= ~BACKGROUND_ALL; |
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attr |= (plain_attr & BACKGROUND_ALL); |
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break; |
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default: |
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/* Unsupported code */ |
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break; |
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} |
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str++; |
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} while (*(str - 1) == ';'); |
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set_console_attr(); |
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break; |
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case 'K': |
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erase_in_line(); |
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break; |
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default: |
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/* Unsupported code */ |
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break; |
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} |
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return func + 1; |
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} |
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static int ansi_emulate(const char *str, FILE *stream) |
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{ |
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int rv = 0; |
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const char *pos = str; |
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fflush(stream); |
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while (*pos) { |
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pos = strstr(str, "\033["); |
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if (pos) { |
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int len = (int) (pos - str); |
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if (len) { |
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int out_len = write_console(str, len); |
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rv += out_len; |
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if (out_len < len) |
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return rv; |
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} |
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str = pos + 2; |
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rv += 2; |
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pos = set_attr(str); |
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rv += (int) (pos - str); |
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str = pos; |
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} |
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else { |
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int len = (int) strlen(str); |
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rv += write_console(str, len); |
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return rv; |
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} |
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} |
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return rv; |
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} |
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int winansi_fputs(const char *str, FILE *stream) |
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{ |
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int rv; |
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if (!isatty(fileno(stream))) |
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return fputs(str, stream); |
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init(); |
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if (!console) |
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return fputs(str, stream); |
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rv = ansi_emulate(str, stream); |
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if (rv >= 0) |
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return 0; |
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else |
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return EOF; |
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} |
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int winansi_vfprintf(FILE *stream, const char *format, va_list list) |
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{ |
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int len, rv; |
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char small_buf[256]; |
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char *buf = small_buf; |
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va_list cp; |
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if (!isatty(fileno(stream))) |
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goto abort; |
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init(); |
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if (!console) |
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goto abort; |
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va_copy(cp, list); |
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len = vsnprintf(small_buf, sizeof(small_buf), format, cp); |
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va_end(cp); |
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if (len > sizeof(small_buf) - 1) { |
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buf = malloc(len + 1); |
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if (!buf) |
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goto abort; |
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len = vsnprintf(buf, len + 1, format, list); |
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} |
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rv = ansi_emulate(buf, stream); |
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if (buf != small_buf) |
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free(buf); |
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return rv; |
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abort: |
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rv = vfprintf(stream, format, list); |
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return rv; |
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} |
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int winansi_fprintf(FILE *stream, const char *format, ...) |
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{ |
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va_list list; |
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int rv; |
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va_start(list, format); |
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rv = winansi_vfprintf(stream, format, list); |
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va_end(list); |
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return rv; |
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} |
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int winansi_printf(const char *format, ...) |
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{ |
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va_list list; |
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int rv; |
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va_start(list, format); |
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rv = winansi_vfprintf(stdout, format, list); |
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va_end(list); |
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return rv; |
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} |
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@ -0,0 +1,32 @@
@@ -0,0 +1,32 @@
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/*
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* ANSI emulation wrappers |
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*/ |
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#ifdef WIN32 |
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#include <windows.h> |
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#include <stddef.h> |
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#include <stdio.h> |
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#define isatty(fd) _isatty(fd) |
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#define fileno(fd) _fileno(fd) |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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int winansi_fputs(const char *str, FILE *stream); |
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int winansi_printf(const char *format, ...); |
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int winansi_fprintf(FILE *stream, const char *format, ...); |
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int winansi_vfprintf(FILE *stream, const char *format, va_list list); |
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#ifdef __cplusplus |
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} |
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#endif |
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#undef fputs |
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#undef fprintf |
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#undef vfprintf |
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#define fputs winansi_fputs |
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#define printf winansi_printf |
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#define fprintf winansi_fprintf |
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#define vfprintf winansi_vfprintf |
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#endif |
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