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@@ -2,7 +2,7 @@ |
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xyntax -- Xolatile-style "header-only" library for syntax definition control. |
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- Primary focus of this library is for syntax highlighting, hence the name... |
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- Primary focus of this library is for syntax highlighting, hence the name, but it can do more... |
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- Important note: Regular expressions are more robust, this is simple solution for simple problems. |
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- Everything related to my libraries is clean of all warning options on Clang, GCC and Valgrind. |
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@@ -21,53 +21,57 @@ $ sudo sh install.sh |
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Usage: |
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```c |
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#include <xolatile/xyntax.h> |
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#include <xolatile/xyntax.h> /* Or: */ |
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#include <xolatile/xyntax.c> /* Instead of '#define BLA_BLA_IMPLEMENTATION' if you want to compile it all together. */ |
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... |
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int symbols = syntax_define (1, 0, ".,:;<=>+-*/%!&~^?|()[]{}", "", '\0', 0, 0); |
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int symbols = syntax_define (true, false, ".,:;<=>+-*/%!&~^?|()[]{}", "", '\0', 0, 0); |
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/* Variable 'symbols' will become the index of current 'syntax_count', and you can use it to count elements or select them without null-termination. */ |
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... |
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int select = syntax_select (& buffer [offset], & length); |
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/* Variable 'select' will become the index of syntax rule you defined previously, or 'syntax_count' if there is no match. */ |
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/* It's important to note that for performance reasons I'm not returning a string or structure, but index and length of the token. */ |
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``` |
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Xolatile-style "header-only" library is my take on 'stb' header-only libraries. There are a lot of ideas that came from Ada, which is my second language. |
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Main idea behind them is to avoid standard library and macros in programs. Also, I like to avoid C-style "namespaces" and bad function names... |
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It can be used for: |
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- syntax highlighting in terminal or graphical text editors... |
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- source code processing, parsing, tokenization... |
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- counting source code elements such as keywords, literals, brackets... |
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For example, your can make simple ANSI C syntax highlight like this: |
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For example, your can define simple ANSI C syntax highlight like this: |
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```c |
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char * separators = ".,:;<=>+-*/%!&~^?|()[]{}'\" \t\r\n"; |
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char * keywords [] = { |
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"register", "volatile", "auto", "const", "static", "extern", "if", "else", |
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"do", "while", "for", "continue", "switch", "case", "default", "break", |
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"enum", "union", "struct", "typedef", "goto", "void", "return", "sizeof", |
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"char", "short", "int", "long", "signed", "unsigned", "float", "double" |
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"register", "volatile", "auto", "const", |
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"static", "extern", "if", "else", |
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"do", "while", "for", "continue", |
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"switch", "case", "default", "break", |
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"enum", "union", "struct", "typedef", |
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"goto", "void", "return", "sizeof", |
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"char", "short", "int", "long", |
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"signed", "unsigned", "float", "double" |
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}; |
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int word; |
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(void) syntax_define (0, 0, "#", "\n", '\\', COLOUR_PINK, EFFECT_BOLD); |
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(void) syntax_define (0, 0, "//", "\n", '\0', COLOUR_GREY, EFFECT_BOLD); |
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(void) syntax_define (0, 0, "/*", "*/", '\0', COLOUR_GREY, EFFECT_BOLD); |
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(void) syntax_define (0, 0, "'", "'", '\0', COLOUR_RED, EFFECT_NORMAL); |
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(void) syntax_define (0, 0, "\"", "\"", '\0', COLOUR_RED, EFFECT_BOLD); |
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(void) syntax_define (1, 0, ".,:;<=>+-*/%!&~^?|()[]{}", "", '\0', COLOUR_CYAN, EFFECT_NORMAL); |
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syntax_define (false, false, "/*", "*/", '\0', colour_grey, effect_bold); |
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syntax_define (false, false, "//", "\n", '\0', colour_grey, effect_bold); |
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syntax_define (false, false, "#", "\n", '\\', colour_yellow, effect_italic); |
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syntax_define (false, false, "'", "'", '\\', colour_pink, effect_bold); |
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syntax_define (false, false, "\"", "\"", '\\', colour_pink, effect_normal); |
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for (word = 0; word != (int) (sizeof (keywords) / sizeof (keywords [0])); ++word) { |
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(void) syntax_define (0, 1, keywords [word], separators, '\0', COLOUR_BLUE, EFFECT_BOLD); |
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syntax_define (false, true, keywords [word], separators, '\0', colour_yellow, effect_bold); |
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} |
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(void) syntax_define (1, 1, "0123456789", separators, '\0', COLOUR_CYAN, EFFECT_BOLD); |
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(void) syntax_define (1, 1, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", separators, '\0', COLOUR_PINK, EFFECT_ITALIC); |
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(void) syntax_define (1, 1, "abcdefghijklmnopqrstuvwxyz", separators, '\0', COLOUR_WHITE, EFFECT_ITALIC); |
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(void) syntax_define (0, 1, "_", separators, '\0', COLOUR_PINK, EFFECT_BOLD); |
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syntax_define (true, false, "()[]{}", "", '\0', colour_blue, effect_normal); |
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syntax_define (true, false, ".,:;<=>+*-/%!&~^?|", "", '\0', colour_cyan, effect_normal); |
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syntax_define (true, true, "0123456789", separators, '\0', colour_pink, effect_bold); |
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syntax_define (true, true, "abcdefghijklmnopqrstuvwxyz", separators, '\0', colour_white, effect_normal); |
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syntax_define (true, true, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", separators, '\0', colour_white, effect_bold); |
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syntax_define (true, true, "_", separators, '\0', colour_white, effect_italic); |
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``` |
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If you want to do parsing, counting, tokenization, you can use return value of 'syntax_define'... |