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|
package preprocessor
import (
"fmt"
"strconv"
"strings"
)
// typically parse that line:
// # 11 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 2 3 4
func parseIncludePreprocessorLine(line string) (item *entity, err error) {
if line[0] != '#' {
err = fmt.Errorf("Cannot parse: first symbol is not # in line %s", line)
return
}
i := strings.Index(line, "\"")
if i < 0 {
err = fmt.Errorf("First index is not correct on line %s", line)
return
}
l := strings.LastIndex(line, "\"")
if i >= l {
err = fmt.Errorf("Not allowable positions of symbol \" (%d and %d) in line : %s", i, l, line)
return
}
pos, err := strconv.ParseInt(strings.TrimSpace(line[1:i]), 10, 64)
if err != nil {
err = fmt.Errorf("Cannot parse position in source : %v", err)
return
}
if l+1 < len(line) {
item = &entity{
positionInSource: int(pos),
include: line[i+1 : l],
other: line[l+1:],
}
} else {
item = &entity{
positionInSource: int(pos),
include: line[i+1 : l],
}
}
return
}
|
