1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159

use libc::{c_uint, c_ulong};
use super::{SyntaxOperator, SyntaxBehavior, Options};

#[link(name="onig")]
extern {
    static OnigSyntaxASIS: Syntax;
    static OnigSyntaxPosixBasic: Syntax;
    static OnigSyntaxPosixExtended: Syntax;
    static OnigSyntaxEmacs: Syntax;
    static OnigSyntaxGrep: Syntax;
    static OnigSyntaxGnuRegex: Syntax;
    static OnigSyntaxJava: Syntax;
    static OnigSyntaxPerl: Syntax;
    static OnigSyntaxPerl_NG: Syntax;
    static OnigSyntaxRuby: Syntax;

    fn onig_copy_syntax(to: *const Syntax, from: *const Syntax);

    fn onig_get_syntax_op(syntax: *const Syntax) -> c_uint;
    fn onig_get_syntax_op2(syntax: *const Syntax) -> c_uint;
    fn onig_get_syntax_behavior(syntax: *const Syntax) -> c_uint;
    fn onig_get_syntax_options(syntax: *const Syntax) -> c_uint;

    fn onig_set_syntax_op(syntax: *mut Syntax, op: c_uint);
    fn onig_set_syntax_op2(syntax: *mut Syntax, op2: c_uint);
    fn onig_set_syntax_behavior(syntax: *mut Syntax, behavior: c_uint);
    fn onig_set_syntax_options(syntax: *mut Syntax, options: c_uint);
}

/// Plain text syntax
pub static SYNTAX_ASIS: &'static Syntax = &OnigSyntaxASIS;
/// POSIX Basic RE syntax
pub static SYNTAX_POSIX_BASIC: &'static Syntax = &OnigSyntaxPosixBasic;
/// POSIX Extended RE syntax
pub static SYNTAX_POSIX_EXTENDED: &'static Syntax = &OnigSyntaxPosixExtended;
/// Emacs syntax
pub static SYNTAX_EMACS: &'static Syntax = &OnigSyntaxEmacs;
/// Grep syntax
pub static SYNTAX_GREP: &'static Syntax = &OnigSyntaxGrep;
/// GNU regex syntax
pub static SYNTAX_GNU_REGEX: &'static Syntax = &OnigSyntaxGnuRegex;
/// Java (Sun java.util.regex) syntax
pub static SYNTAX_JAVA: &'static Syntax = &OnigSyntaxJava;
/// Perl syntax
pub static SYNTAX_PERL: &'static Syntax = &OnigSyntaxPerl;
/// Perl + named group syntax
pub static SYNTAX_PERL_NG: &'static Syntax = &OnigSyntaxPerl_NG;
/// Ruby syntax (default)
pub static SYNTAX_RUBY: &'static Syntax = &OnigSyntaxRuby;


type OnigCodePoint = c_ulong;

#[repr(C)]
#[derive(Debug)]
struct OnigMetaCharTable {
    esc: OnigCodePoint,
    anychar: OnigCodePoint,
    anytime: OnigCodePoint,
    zero_or_one_time: OnigCodePoint,
    one_or_more_time: OnigCodePoint,
    anychar_anytime: OnigCodePoint
}

#[repr(C)]
#[derive(Debug)]
pub struct Syntax {
    op: c_uint,
    op2: c_uint,
    behavior: c_uint,
    options: c_uint,
    meta_char_table: OnigMetaCharTable
}

impl Clone for Syntax {
    fn clone(&self) -> Syntax {
        let mut syntax = Syntax {
            op: 0,
            op2: 0,
            behavior: 0,
            options: 0,
            meta_char_table: OnigMetaCharTable {
                esc: 0,
                anychar: 0,
                anytime: 0,
                zero_or_one_time: 0,
                one_or_more_time: 0,
                anychar_anytime: 0,
            }
        };
        Syntax::clone_from(&mut syntax, self);
        syntax
    }

    fn clone_from(&mut self, source: &Syntax) {
        unsafe {
            onig_copy_syntax(self, source)
        }
    }
}

impl Syntax {
    pub fn get_operators(&self) -> SyntaxOperator {
        SyntaxOperator::from_bits_truncate(unsafe {
            onig_get_syntax_op(self) as u64 + ((onig_get_syntax_op2(self) as u64) << 32)
        })
    }

    pub fn set_operators(&mut self, operators: SyntaxOperator) {
        unsafe {
            onig_set_syntax_op(self, operators.bits() as c_uint);
            onig_set_syntax_op2(self, (operators.bits() >> 32) as c_uint)
        }
    }

    pub fn enable_operators(&mut self, operators: SyntaxOperator) {
        let operators = self.get_operators() | operators;
        self.set_operators(operators)
    }

    pub fn disable_operators(&mut self, operators: SyntaxOperator) {
        let operators = self.get_operators() & !operators;
        self.set_operators(operators)
    }

    pub fn get_behaviors(&self) -> SyntaxBehavior {
        SyntaxBehavior::from_bits_truncate(unsafe {
            onig_get_syntax_behavior(self)
        })
    }

    pub fn set_behaviors(&mut self, behaviors: SyntaxBehavior) {
        unsafe {
            onig_set_syntax_behavior(self, behaviors.bits() as c_uint);
        }
    }

    pub fn enable_behaviors(&mut self, behaviors: SyntaxBehavior) {
        let behaviors = self.get_behaviors() | behaviors;
        self.set_behaviors(behaviors)
    }

    pub fn disable_behaviors(&mut self, behaviors: SyntaxBehavior) {
        let behaviors = self.get_behaviors() & !behaviors;
        self.set_behaviors(behaviors)
    }

    pub fn get_options(&self) -> Options {
        Options::from_bits_truncate(unsafe {
            onig_get_syntax_options(self)
        })
    }

    pub fn set_options(&mut self, options: Options) {
        unsafe {
            onig_set_syntax_options(self, options.bits() as c_uint);
        }
    }
}