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strings.write_quoted_string

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This commit is contained in:
gingerBill
2019-01-06 22:16:14 +00:00
parent 64f84ef9a3
commit 6295f6747f
2 changed files with 26 additions and 22 deletions
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core/fmt/fmt.odin
+1 -20
View File
@@ -601,26 +601,7 @@ fmt_string :: proc(fi: ^Info, s: string, verb: rune) {
strings.write_string(fi.buf, s); strings.write_string(fi.buf, s);
case 'q': // quoted string case 'q': // quoted string
quote: byte = '"'; strings.write_quoted_string(fi.buf, s, '"');
strings.write_byte(fi.buf, quote);
for width := 0; len(s) > 0; s = s[width:] {
r := rune(s[0]);
width = 1;
if r >= utf8.RUNE_SELF {
r, width = utf8.decode_rune_in_string(s);
}
if width == 1 && r == utf8.RUNE_ERROR {
strings.write_byte(fi.buf, '\\');
strings.write_byte(fi.buf, 'x');
strings.write_byte(fi.buf, __DIGITS_LOWER[s[0]>>4]);
strings.write_byte(fi.buf, __DIGITS_LOWER[s[0]&0xf]);
continue;
}
strings.write_escaped_rune(fi.buf, r, quote);
}
strings.write_byte(fi.buf, quote);
case 'x', 'X': case 'x', 'X':
space := fi.space; space := fi.space;
core/strings/builder.odin
+25 -2
View File
@@ -61,6 +61,31 @@ write_bytes :: proc(b: ^Builder, x: []byte) {
append(&b.buf, ..x); append(&b.buf, ..x);
} }
@(private)
static DIGITS_LOWER := "0123456789abcdefx";
write_quoted_string :: proc(b: ^Builder, s: string, quote: byte = '"') {
write_byte(b, quote);
for width := 0; len(s) > 0; s = s[width:] {
r := rune(s[0]);
width = 1;
if r >= utf8.RUNE_SELF {
r, width = utf8.decode_rune_in_string(s);
}
if width == 1 && r == utf8.RUNE_ERROR {
write_byte(b, '\\');
write_byte(b, 'x');
write_byte(b, DIGITS_LOWER[s[0]>>4]);
write_byte(b, DIGITS_LOWER[s[0]&0xf]);
continue;
}
write_escaped_rune(b, r, quote);
}
write_byte(b, quote);
}
write_encoded_rune :: proc(b: ^Builder, r: rune, write_quote := true) { write_encoded_rune :: proc(b: ^Builder, r: rune, write_quote := true) {
if write_quote do write_byte(b, '\''); if write_quote do write_byte(b, '\'');
@@ -93,8 +118,6 @@ write_encoded_rune :: proc(b: ^Builder, r: rune, write_quote := true) {
write_escaped_rune :: proc(b: ^Builder, r: rune, quote: byte) { write_escaped_rune :: proc(b: ^Builder, r: rune, quote: byte) {
static DIGITS_LOWER := "0123456789abcdefx";
is_printable :: proc(r: rune) -> bool { is_printable :: proc(r: rune) -> bool {
if r <= 0xff { if r <= 0xff {
switch r { switch r {