func hsExpressionInfo(expression string, flags CompileFlag) (*ExprInfo, error) {
var info *C.hs_expr_info_t
var err *C.hs_compile_error_t
expr := C.CString(expression)
ret := C.hs_expression_info(expr, C.uint(flags), &info, &err)
C.free(unsafe.Pointer(expr))
if ret == C.HS_SUCCESS && info != nil {
defer hsMiscFree(unsafe.Pointer(info))
return &ExprInfo{
MinWidth: uint(info.min_width),
MaxWidth: uint(info.max_width),
ReturnUnordered: info.unordered_matches != 0,
AtEndOfData: info.matches_at_eod != 0,
OnlyAtEndOfData: info.matches_only_at_eod != 0,
}, nil
}
if err != nil {
defer C.hs_free_compile_error(err)
}
if ret == C.HS_COMPILER_ERROR && err != nil {
return nil, &compileError{C.GoString(err.message), int(err.expression)}
}
return nil, fmt.Errorf("compile error, %d", int(ret))
}
func hsCompile(expression string, flags CompileFlag, mode ModeFlag, info *hsPlatformInfo) (hsDatabase, error) {
var db *C.hs_database_t
var err *C.hs_compile_error_t
var platform *C.hs_platform_info_t
if info != nil {
platform = &info.platform
}
expr := C.CString(expression)
ret := C.hs_compile(expr, C.uint(flags), C.uint(mode), platform, &db, &err)
C.free(unsafe.Pointer(expr))
if ret == C.HS_SUCCESS {
return db, nil
}
if err != nil {
defer C.hs_free_compile_error(err)
}
if ret == C.HS_COMPILER_ERROR && err != nil {
return nil, &compileError{C.GoString(err.message), int(err.expression)}
}
return nil, fmt.Errorf("compile error, %d", int(ret))
}
func hsCompileMulti(expressions []string, flags []CompileFlag, ids []uint, mode ModeFlag, info *hsPlatformInfo) (hsDatabase, error) {
var db *C.hs_database_t
var err *C.hs_compile_error_t
var platform *C.hs_platform_info_t
if info != nil {
platform = &info.platform
}
cexprs := make([]*C.char, len(expressions))
for i, expr := range expressions {
cexprs[i] = C.CString(expr)
}
var cflags, cids *C.uint
if flags != nil {
values := make([]C.uint, len(flags))
for i, flag := range flags {
values[i] = C.uint(flag)
}
cflags = &values[0]
}
if ids != nil {
values := make([]C.uint, len(ids))
for i, id := range ids {
values[i] = C.uint(id)
}
cids = &values[0]
}
ret := C.hs_compile_multi(&cexprs[0], cflags, cids, C.uint(len(cexprs)), C.uint(mode), platform, &db, &err)
for _, expr := range cexprs {
C.free(unsafe.Pointer(expr))
}
if ret == C.HS_SUCCESS {
return db, nil
}
if err != nil {
defer C.hs_free_compile_error(err)
}
if ret == C.HS_COMPILER_ERROR && err != nil {
return nil, &compileError{C.GoString(err.message), int(err.expression)}
}
return nil, fmt.Errorf("compile error, %d", int(ret))
}