mirror of
https://github.com/KevinMidboe/linguist.git
synced 2025-10-29 17:50:22 +00:00
e335d48625
* grammars: Update several grammars with compat issues * [WIP] Add new grammar conversion tools * Wrap in a Docker script * Proper Dockerfile support * Add Javadoc grammar * Remove NPM package.json * Remove superfluous test This is now always checked by the grammars compiler * Update JSyntax grammar to new submodule * Approve Javadoc license * grammars: Remove checked-in dependencies * grammars: Add regex checks to the compiler * grammars: Point Oz to its actual submodule * grammars: Refactor compiler to group errors by repo * grammars: Cleanups to error reporting
54 lines
1004 B
Go
54 lines
1004 B
Go
package pcre
|
|
|
|
/*
|
|
#cgo LDFLAGS: -lpcre
|
|
#include <pcre.h>
|
|
*/
|
|
import "C"
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
"unsafe"
|
|
)
|
|
|
|
func RegexPP(re string) string {
|
|
if len(re) > 32 {
|
|
re = fmt.Sprintf("\"`%s`...\"", re[:32])
|
|
} else {
|
|
re = fmt.Sprintf("\"`%s`\"", re)
|
|
}
|
|
return strings.Replace(re, "\n", "", -1)
|
|
}
|
|
|
|
type CompileError struct {
|
|
Pattern string
|
|
Message string
|
|
Offset int
|
|
}
|
|
|
|
func (e *CompileError) Error() string {
|
|
return fmt.Sprintf("regex %s: %s (at offset %d)",
|
|
RegexPP(e.Pattern), e.Message, e.Offset)
|
|
}
|
|
|
|
const DefaultFlags = int(C.PCRE_DUPNAMES | C.PCRE_UTF8 | C.PCRE_NEWLINE_ANYCRLF)
|
|
|
|
func CheckRegexp(pattern string, flags int) error {
|
|
pattern1 := C.CString(pattern)
|
|
defer C.free(unsafe.Pointer(pattern1))
|
|
|
|
var errptr *C.char
|
|
var erroffset C.int
|
|
ptr := C.pcre_compile(pattern1, C.int(flags), &errptr, &erroffset, nil)
|
|
if ptr == nil {
|
|
return &CompileError{
|
|
Pattern: pattern,
|
|
Message: C.GoString(errptr),
|
|
Offset: int(erroffset),
|
|
}
|
|
}
|
|
C.free(unsafe.Pointer(ptr))
|
|
return nil
|
|
}
|