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Diffstat (limited to 'config')
-rw-r--r--config/config.go638
-rw-r--r--config/parser.go496
-rw-r--r--config/value_parse.go158
3 files changed, 654 insertions, 638 deletions
diff --git a/config/config.go b/config/config.go
index b761dce5..4ff8b21d 100644
--- a/config/config.go
+++ b/config/config.go
@@ -3,15 +3,10 @@ package config
import (
"bufio"
- "bytes"
"errors"
"fmt"
"io"
- "math"
- "strconv"
"strings"
-
- "codeberg.org/lindenii/furgit/internal/intconv"
)
// Config holds all parsed configuration entries from a Git config file.
@@ -175,636 +170,3 @@ func (c *Config) Entries() []ConfigEntry {
return result
}
-
-type configParser struct {
- reader *bufio.Reader
- lineNum int
- currentSection string
- currentSubsec string
- peeked byte
- hasPeeked bool
-}
-
-func (p *configParser) parse() (*Config, error) {
- cfg := &Config{}
-
- err := p.skipBOM()
- if err != nil {
- return nil, err
- }
-
- for {
- ch, err := p.nextChar()
- if errors.Is(err, io.EOF) {
- break
- }
-
- if err != nil {
- return nil, err
- }
-
- // Skip leading whitespace between entries.
- if isWhitespace(ch) {
- continue
- }
-
- // Comments
- if ch == '#' || ch == ';' {
- err := p.skipToEOL()
- if err != nil && !errors.Is(err, io.EOF) {
- return nil, err
- }
-
- continue
- }
-
- // Section header
- if ch == '[' {
- err := p.parseSection()
- if err != nil {
- return nil, fmt.Errorf("furgit: config: line %d: %w", p.lineNum, err)
- }
-
- continue
- }
-
- // Key-value pair
- if isLetter(ch) {
- p.unreadChar(ch)
-
- err := p.parseKeyValue(cfg)
- if err != nil {
- return nil, fmt.Errorf("furgit: config: line %d: %w", p.lineNum, err)
- }
-
- continue
- }
-
- return nil, fmt.Errorf("furgit: config: line %d: unexpected character %q", p.lineNum, ch)
- }
-
- return cfg, nil
-}
-
-func (p *configParser) nextChar() (byte, error) {
- if p.hasPeeked {
- p.hasPeeked = false
-
- return p.peeked, nil
- }
-
- ch, err := p.reader.ReadByte()
- if err != nil {
- return 0, err
- }
-
- if ch == '\r' {
- next, err := p.reader.ReadByte()
- if err == nil && next == '\n' {
- ch = '\n'
- } else if err == nil {
- // Weird but ok
- _ = p.reader.UnreadByte()
- }
- }
-
- if ch == '\n' {
- p.lineNum++
- }
-
- return ch, nil
-}
-
-func (p *configParser) unreadChar(ch byte) {
- p.peeked = ch
-
- p.hasPeeked = true
- if ch == '\n' && p.lineNum > 1 {
- p.lineNum--
- }
-}
-
-func (p *configParser) skipBOM() error {
- first, err := p.reader.ReadByte()
- if errors.Is(err, io.EOF) {
- return nil
- }
-
- if err != nil {
- return err
- }
-
- if first != 0xef {
- _ = p.reader.UnreadByte()
-
- return nil
- }
-
- second, err := p.reader.ReadByte()
- if err != nil {
- if errors.Is(err, io.EOF) {
- _ = p.reader.UnreadByte()
-
- return nil
- }
-
- return err
- }
-
- third, err := p.reader.ReadByte()
- if err != nil {
- if errors.Is(err, io.EOF) {
- _ = p.reader.UnreadByte()
- _ = p.reader.UnreadByte()
-
- return nil
- }
-
- return err
- }
-
- if second == 0xbb && third == 0xbf {
- return nil
- }
-
- _ = p.reader.UnreadByte()
- _ = p.reader.UnreadByte()
- _ = p.reader.UnreadByte()
-
- return nil
-}
-
-func (p *configParser) skipToEOL() error {
- for {
- ch, err := p.nextChar()
- if err != nil {
- return err
- }
-
- if ch == '\n' {
- return nil
- }
- }
-}
-
-func (p *configParser) parseSection() error {
- var name bytes.Buffer
-
- for {
- ch, err := p.nextChar()
- if err != nil {
- return errors.New("unexpected EOF in section header")
- }
-
- if ch == ']' {
- section := name.String()
- if !isValidSection(section) {
- return fmt.Errorf("invalid section name: %q", section)
- }
-
- p.currentSection = strings.ToLower(section)
- p.currentSubsec = ""
-
- return nil
- }
-
- if isWhitespace(ch) {
- return p.parseExtendedSection(&name)
- }
-
- if !isKeyChar(ch) && ch != '.' {
- return fmt.Errorf("invalid character in section name: %q", ch)
- }
-
- name.WriteByte(toLower(ch))
- }
-}
-
-func (p *configParser) parseExtendedSection(sectionName *bytes.Buffer) error {
- for {
- ch, err := p.nextChar()
- if err != nil {
- return errors.New("unexpected EOF in section header")
- }
-
- if !isWhitespace(ch) {
- if ch != '"' {
- return errors.New("expected quote after section name")
- }
-
- break
- }
- }
-
- var subsec bytes.Buffer
-
- for {
- ch, err := p.nextChar()
- if err != nil {
- return errors.New("unexpected EOF in subsection")
- }
-
- if ch == '\n' {
- return errors.New("newline in subsection")
- }
-
- if ch == '"' {
- break
- }
-
- if ch == '\\' {
- next, err := p.nextChar()
- if err != nil {
- return errors.New("unexpected EOF after backslash in subsection")
- }
-
- if next == '\n' {
- return errors.New("newline after backslash in subsection")
- }
-
- subsec.WriteByte(next)
- } else {
- subsec.WriteByte(ch)
- }
- }
-
- ch, err := p.nextChar()
- if err != nil {
- return errors.New("unexpected EOF after subsection")
- }
-
- if ch != ']' {
- return fmt.Errorf("expected ']' after subsection, got %q", ch)
- }
-
- section := sectionName.String()
- if !isValidSection(section) {
- return fmt.Errorf("invalid section name: %q", section)
- }
-
- p.currentSection = strings.ToLower(section)
- p.currentSubsec = subsec.String()
-
- return nil
-}
-
-func (p *configParser) parseKeyValue(cfg *Config) error {
- if p.currentSection == "" {
- return errors.New("key-value pair before any section header")
- }
-
- var key bytes.Buffer
-
- for {
- ch, err := p.nextChar()
- if errors.Is(err, io.EOF) {
- break
- }
-
- if err != nil {
- return err
- }
-
- if ch == '=' || ch == '\n' || isSpace(ch) {
- p.unreadChar(ch)
-
- break
- }
-
- if !isKeyChar(ch) {
- return fmt.Errorf("invalid character in key: %q", ch)
- }
-
- key.WriteByte(toLower(ch))
- }
-
- keyStr := key.String()
- if len(keyStr) == 0 {
- return errors.New("empty key name")
- }
-
- if !isLetter(keyStr[0]) {
- return errors.New("key must start with a letter")
- }
-
- for {
- ch, err := p.nextChar()
- if errors.Is(err, io.EOF) {
- cfg.entries = append(cfg.entries, ConfigEntry{
- Section: p.currentSection,
- Subsection: p.currentSubsec,
- Key: keyStr,
- Kind: ValueValueless,
- Value: "",
- })
-
- return nil
- }
-
- if err != nil {
- return err
- }
-
- if ch == '\n' {
- cfg.entries = append(cfg.entries, ConfigEntry{
- Section: p.currentSection,
- Subsection: p.currentSubsec,
- Key: keyStr,
- Kind: ValueValueless,
- Value: "",
- })
-
- return nil
- }
-
- if ch == '#' || ch == ';' {
- err := p.skipToEOL()
- if err != nil && !errors.Is(err, io.EOF) {
- return err
- }
-
- cfg.entries = append(cfg.entries, ConfigEntry{
- Section: p.currentSection,
- Subsection: p.currentSubsec,
- Key: keyStr,
- Kind: ValueValueless,
- Value: "",
- })
-
- return nil
- }
-
- if ch == '=' {
- break
- }
-
- if !isSpace(ch) {
- return fmt.Errorf("unexpected character after key: %q", ch)
- }
- }
-
- value, err := p.parseValue()
- if err != nil {
- return err
- }
-
- cfg.entries = append(cfg.entries, ConfigEntry{
- Section: p.currentSection,
- Subsection: p.currentSubsec,
- Key: keyStr,
- Kind: ValueString,
- Value: value,
- })
-
- return nil
-}
-
-func (p *configParser) parseValue() (string, error) {
- var (
- value bytes.Buffer
- inQuote bool
- inComment bool
- )
-
- trimLen := 0
-
- for {
- ch, err := p.nextChar()
- if errors.Is(err, io.EOF) {
- if inQuote {
- return "", errors.New("unexpected EOF in quoted value")
- }
-
- if trimLen > 0 {
- return truncateAtNUL(value.String()[:trimLen]), nil
- }
-
- return truncateAtNUL(value.String()), nil
- }
-
- if err != nil {
- return "", err
- }
-
- if ch == '\n' {
- if inQuote {
- return "", errors.New("newline in quoted value")
- }
-
- if trimLen > 0 {
- return truncateAtNUL(value.String()[:trimLen]), nil
- }
-
- return truncateAtNUL(value.String()), nil
- }
-
- if inComment {
- continue
- }
-
- if isWhitespace(ch) && !inQuote {
- if trimLen == 0 && value.Len() > 0 {
- trimLen = value.Len()
- }
-
- if value.Len() > 0 {
- value.WriteByte(ch)
- }
-
- continue
- }
-
- if !inQuote && (ch == '#' || ch == ';') {
- inComment = true
-
- continue
- }
-
- if trimLen > 0 {
- trimLen = 0
- }
-
- if ch == '\\' {
- next, err := p.nextChar()
- if errors.Is(err, io.EOF) {
- return "", errors.New("unexpected EOF after backslash")
- }
-
- if err != nil {
- return "", err
- }
-
- switch next {
- case '\n':
- continue
- case 'n':
- value.WriteByte('\n')
- case 't':
- value.WriteByte('\t')
- case 'b':
- value.WriteByte('\b')
- case '\\', '"':
- value.WriteByte(next)
- default:
- return "", fmt.Errorf("invalid escape sequence: \\%c", next)
- }
-
- continue
- }
-
- if ch == '"' {
- inQuote = !inQuote
-
- continue
- }
-
- value.WriteByte(ch)
- }
-}
-
-func isValidSection(s string) bool {
- if len(s) == 0 {
- return false
- }
-
- for i := range len(s) {
- ch := s[i]
- if !isLetter(ch) && !isDigit(ch) && ch != '-' && ch != '.' {
- return false
- }
- }
-
- return true
-}
-
-func isKeyChar(ch byte) bool {
- return isLetter(ch) || isDigit(ch) || ch == '-'
-}
-
-func parseBool(value string) (bool, error) {
- switch {
- case strings.EqualFold(value, "true"),
- strings.EqualFold(value, "yes"),
- strings.EqualFold(value, "on"):
- return true, nil
- case strings.EqualFold(value, "false"),
- strings.EqualFold(value, "no"),
- strings.EqualFold(value, "off"),
- value == "":
- return false, nil
- }
-
- n, err := parseInt32(value)
- if err != nil {
- return false, fmt.Errorf("invalid boolean value %q", value)
- }
-
- return n != 0, nil
-}
-
-func parseInt32(value string) (int32, error) {
- n64, err := parseInt64WithMax(value, math.MaxInt32)
- if err != nil {
- return 0, err
- }
-
- return intconv.Int64ToInt32(n64)
-}
-
-func parseInt(value string) (int, error) {
- n64, err := parseInt64WithMax(value, int64(int(^uint(0)>>1)))
- if err != nil {
- return 0, err
- }
-
- return int(n64), nil
-}
-
-func parseInt64(value string) (int64, error) {
- return parseInt64WithMax(value, int64(^uint64(0)>>1))
-}
-
-func parseInt64WithMax(value string, maxValue int64) (int64, error) {
- if value == "" {
- return 0, errors.New("empty value")
- }
-
- trimmed := strings.TrimLeft(value, " \t\n\r\f\v")
- if trimmed == "" {
- return 0, errors.New("empty value")
- }
-
- numPart := trimmed
- factor := int64(1)
-
- if last := trimmed[len(trimmed)-1]; last == 'k' || last == 'K' || last == 'm' || last == 'M' || last == 'g' || last == 'G' {
- switch toLower(last) {
- case 'k':
- factor = 1024
- case 'm':
- factor = 1024 * 1024
- case 'g':
- factor = 1024 * 1024 * 1024
- }
-
- numPart = trimmed[:len(trimmed)-1]
- }
-
- if numPart == "" {
- return 0, errors.New("missing integer value")
- }
-
- n, err := strconv.ParseInt(numPart, 0, 64)
- if err != nil {
- return 0, err
- }
-
- intMax := maxValue
- intMin := -maxValue - 1
-
- if n > 0 && n > intMax/factor {
- return 0, errors.New("integer overflow")
- }
-
- if n < 0 && n < intMin/factor {
- return 0, errors.New("integer overflow")
- }
-
- n *= factor
-
- return n, nil
-}
-
-func truncateAtNUL(value string) string {
- for i := range len(value) {
- if value[i] == 0 {
- return value[:i]
- }
- }
-
- return value
-}
-
-func isSpace(ch byte) bool {
- return ch == ' ' || ch == '\t'
-}
-
-func isWhitespace(ch byte) bool {
- return ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r' || ch == '\v' || ch == '\f'
-}
-
-func isLetter(ch byte) bool {
- return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')
-}
-
-func isDigit(ch byte) bool {
- return ch >= '0' && ch <= '9'
-}
-
-func toLower(ch byte) byte {
- if ch >= 'A' && ch <= 'Z' {
- return ch + ('a' - 'A')
- }
-
- return ch
-}
diff --git a/config/parser.go b/config/parser.go
new file mode 100644
index 00000000..edaf1944
--- /dev/null
+++ b/config/parser.go
@@ -0,0 +1,496 @@
+package config
+
+import (
+ "bufio"
+ "bytes"
+ "errors"
+ "fmt"
+ "io"
+ "strings"
+)
+
+type configParser struct {
+ reader *bufio.Reader
+ lineNum int
+ currentSection string
+ currentSubsec string
+ peeked byte
+ hasPeeked bool
+}
+
+func (p *configParser) parse() (*Config, error) {
+ cfg := &Config{}
+
+ err := p.skipBOM()
+ if err != nil {
+ return nil, err
+ }
+
+ for {
+ ch, err := p.nextChar()
+ if errors.Is(err, io.EOF) {
+ break
+ }
+
+ if err != nil {
+ return nil, err
+ }
+
+ // Skip leading whitespace between entries.
+ if isWhitespace(ch) {
+ continue
+ }
+
+ // Comments
+ if ch == '#' || ch == ';' {
+ err := p.skipToEOL()
+ if err != nil && !errors.Is(err, io.EOF) {
+ return nil, err
+ }
+
+ continue
+ }
+
+ // Section header
+ if ch == '[' {
+ err := p.parseSection()
+ if err != nil {
+ return nil, fmt.Errorf("furgit: config: line %d: %w", p.lineNum, err)
+ }
+
+ continue
+ }
+
+ // Key-value pair
+ if isLetter(ch) {
+ p.unreadChar(ch)
+
+ err := p.parseKeyValue(cfg)
+ if err != nil {
+ return nil, fmt.Errorf("furgit: config: line %d: %w", p.lineNum, err)
+ }
+
+ continue
+ }
+
+ return nil, fmt.Errorf("furgit: config: line %d: unexpected character %q", p.lineNum, ch)
+ }
+
+ return cfg, nil
+}
+
+func (p *configParser) nextChar() (byte, error) {
+ if p.hasPeeked {
+ p.hasPeeked = false
+
+ return p.peeked, nil
+ }
+
+ ch, err := p.reader.ReadByte()
+ if err != nil {
+ return 0, err
+ }
+
+ if ch == '\r' {
+ next, err := p.reader.ReadByte()
+ if err == nil && next == '\n' {
+ ch = '\n'
+ } else if err == nil {
+ // Weird but ok
+ _ = p.reader.UnreadByte()
+ }
+ }
+
+ if ch == '\n' {
+ p.lineNum++
+ }
+
+ return ch, nil
+}
+
+func (p *configParser) unreadChar(ch byte) {
+ p.peeked = ch
+
+ p.hasPeeked = true
+ if ch == '\n' && p.lineNum > 1 {
+ p.lineNum--
+ }
+}
+
+func (p *configParser) skipBOM() error {
+ first, err := p.reader.ReadByte()
+ if errors.Is(err, io.EOF) {
+ return nil
+ }
+
+ if err != nil {
+ return err
+ }
+
+ if first != 0xef {
+ _ = p.reader.UnreadByte()
+
+ return nil
+ }
+
+ second, err := p.reader.ReadByte()
+ if err != nil {
+ if errors.Is(err, io.EOF) {
+ _ = p.reader.UnreadByte()
+
+ return nil
+ }
+
+ return err
+ }
+
+ third, err := p.reader.ReadByte()
+ if err != nil {
+ if errors.Is(err, io.EOF) {
+ _ = p.reader.UnreadByte()
+ _ = p.reader.UnreadByte()
+
+ return nil
+ }
+
+ return err
+ }
+
+ if second == 0xbb && third == 0xbf {
+ return nil
+ }
+
+ _ = p.reader.UnreadByte()
+ _ = p.reader.UnreadByte()
+ _ = p.reader.UnreadByte()
+
+ return nil
+}
+
+func (p *configParser) skipToEOL() error {
+ for {
+ ch, err := p.nextChar()
+ if err != nil {
+ return err
+ }
+
+ if ch == '\n' {
+ return nil
+ }
+ }
+}
+
+func (p *configParser) parseSection() error {
+ var name bytes.Buffer
+
+ for {
+ ch, err := p.nextChar()
+ if err != nil {
+ return errors.New("unexpected EOF in section header")
+ }
+
+ if ch == ']' {
+ section := name.String()
+ if !isValidSection(section) {
+ return fmt.Errorf("invalid section name: %q", section)
+ }
+
+ p.currentSection = strings.ToLower(section)
+ p.currentSubsec = ""
+
+ return nil
+ }
+
+ if isWhitespace(ch) {
+ return p.parseExtendedSection(&name)
+ }
+
+ if !isKeyChar(ch) && ch != '.' {
+ return fmt.Errorf("invalid character in section name: %q", ch)
+ }
+
+ name.WriteByte(toLower(ch))
+ }
+}
+
+func (p *configParser) parseExtendedSection(sectionName *bytes.Buffer) error {
+ for {
+ ch, err := p.nextChar()
+ if err != nil {
+ return errors.New("unexpected EOF in section header")
+ }
+
+ if !isWhitespace(ch) {
+ if ch != '"' {
+ return errors.New("expected quote after section name")
+ }
+
+ break
+ }
+ }
+
+ var subsec bytes.Buffer
+
+ for {
+ ch, err := p.nextChar()
+ if err != nil {
+ return errors.New("unexpected EOF in subsection")
+ }
+
+ if ch == '\n' {
+ return errors.New("newline in subsection")
+ }
+
+ if ch == '"' {
+ break
+ }
+
+ if ch == '\\' {
+ next, err := p.nextChar()
+ if err != nil {
+ return errors.New("unexpected EOF after backslash in subsection")
+ }
+
+ if next == '\n' {
+ return errors.New("newline after backslash in subsection")
+ }
+
+ subsec.WriteByte(next)
+ } else {
+ subsec.WriteByte(ch)
+ }
+ }
+
+ ch, err := p.nextChar()
+ if err != nil {
+ return errors.New("unexpected EOF after subsection")
+ }
+
+ if ch != ']' {
+ return fmt.Errorf("expected ']' after subsection, got %q", ch)
+ }
+
+ section := sectionName.String()
+ if !isValidSection(section) {
+ return fmt.Errorf("invalid section name: %q", section)
+ }
+
+ p.currentSection = strings.ToLower(section)
+ p.currentSubsec = subsec.String()
+
+ return nil
+}
+
+func (p *configParser) parseKeyValue(cfg *Config) error {
+ if p.currentSection == "" {
+ return errors.New("key-value pair before any section header")
+ }
+
+ var key bytes.Buffer
+
+ for {
+ ch, err := p.nextChar()
+ if errors.Is(err, io.EOF) {
+ break
+ }
+
+ if err != nil {
+ return err
+ }
+
+ if ch == '=' || ch == '\n' || isSpace(ch) {
+ p.unreadChar(ch)
+
+ break
+ }
+
+ if !isKeyChar(ch) {
+ return fmt.Errorf("invalid character in key: %q", ch)
+ }
+
+ key.WriteByte(toLower(ch))
+ }
+
+ keyStr := key.String()
+ if len(keyStr) == 0 {
+ return errors.New("empty key name")
+ }
+
+ if !isLetter(keyStr[0]) {
+ return errors.New("key must start with a letter")
+ }
+
+ for {
+ ch, err := p.nextChar()
+ if errors.Is(err, io.EOF) {
+ cfg.entries = append(cfg.entries, ConfigEntry{
+ Section: p.currentSection,
+ Subsection: p.currentSubsec,
+ Key: keyStr,
+ Kind: ValueValueless,
+ Value: "",
+ })
+
+ return nil
+ }
+
+ if err != nil {
+ return err
+ }
+
+ if ch == '\n' {
+ cfg.entries = append(cfg.entries, ConfigEntry{
+ Section: p.currentSection,
+ Subsection: p.currentSubsec,
+ Key: keyStr,
+ Kind: ValueValueless,
+ Value: "",
+ })
+
+ return nil
+ }
+
+ if ch == '#' || ch == ';' {
+ err := p.skipToEOL()
+ if err != nil && !errors.Is(err, io.EOF) {
+ return err
+ }
+
+ cfg.entries = append(cfg.entries, ConfigEntry{
+ Section: p.currentSection,
+ Subsection: p.currentSubsec,
+ Key: keyStr,
+ Kind: ValueValueless,
+ Value: "",
+ })
+
+ return nil
+ }
+
+ if ch == '=' {
+ break
+ }
+
+ if !isSpace(ch) {
+ return fmt.Errorf("unexpected character after key: %q", ch)
+ }
+ }
+
+ value, err := p.parseValue()
+ if err != nil {
+ return err
+ }
+
+ cfg.entries = append(cfg.entries, ConfigEntry{
+ Section: p.currentSection,
+ Subsection: p.currentSubsec,
+ Key: keyStr,
+ Kind: ValueString,
+ Value: value,
+ })
+
+ return nil
+}
+
+func (p *configParser) parseValue() (string, error) {
+ var (
+ value bytes.Buffer
+ inQuote bool
+ inComment bool
+ )
+
+ trimLen := 0
+
+ for {
+ ch, err := p.nextChar()
+ if errors.Is(err, io.EOF) {
+ if inQuote {
+ return "", errors.New("unexpected EOF in quoted value")
+ }
+
+ if trimLen > 0 {
+ return truncateAtNUL(value.String()[:trimLen]), nil
+ }
+
+ return truncateAtNUL(value.String()), nil
+ }
+
+ if err != nil {
+ return "", err
+ }
+
+ if ch == '\n' {
+ if inQuote {
+ return "", errors.New("newline in quoted value")
+ }
+
+ if trimLen > 0 {
+ return truncateAtNUL(value.String()[:trimLen]), nil
+ }
+
+ return truncateAtNUL(value.String()), nil
+ }
+
+ if inComment {
+ continue
+ }
+
+ if isWhitespace(ch) && !inQuote {
+ if trimLen == 0 && value.Len() > 0 {
+ trimLen = value.Len()
+ }
+
+ if value.Len() > 0 {
+ value.WriteByte(ch)
+ }
+
+ continue
+ }
+
+ if !inQuote && (ch == '#' || ch == ';') {
+ inComment = true
+
+ continue
+ }
+
+ if trimLen > 0 {
+ trimLen = 0
+ }
+
+ if ch == '\\' {
+ next, err := p.nextChar()
+ if errors.Is(err, io.EOF) {
+ return "", errors.New("unexpected EOF after backslash")
+ }
+
+ if err != nil {
+ return "", err
+ }
+
+ switch next {
+ case '\n':
+ continue
+ case 'n':
+ value.WriteByte('\n')
+ case 't':
+ value.WriteByte('\t')
+ case 'b':
+ value.WriteByte('\b')
+ case '\\', '"':
+ value.WriteByte(next)
+ default:
+ return "", fmt.Errorf("invalid escape sequence: \\%c", next)
+ }
+
+ continue
+ }
+
+ if ch == '"' {
+ inQuote = !inQuote
+
+ continue
+ }
+
+ value.WriteByte(ch)
+ }
+}
diff --git a/config/value_parse.go b/config/value_parse.go
new file mode 100644
index 00000000..9659e476
--- /dev/null
+++ b/config/value_parse.go
@@ -0,0 +1,158 @@
+package config
+
+import (
+ "errors"
+ "fmt"
+ "math"
+ "strconv"
+ "strings"
+
+ "codeberg.org/lindenii/furgit/internal/intconv"
+)
+
+func isValidSection(s string) bool {
+ if len(s) == 0 {
+ return false
+ }
+
+ for i := range len(s) {
+ ch := s[i]
+ if !isLetter(ch) && !isDigit(ch) && ch != '-' && ch != '.' {
+ return false
+ }
+ }
+
+ return true
+}
+
+func isKeyChar(ch byte) bool {
+ return isLetter(ch) || isDigit(ch) || ch == '-'
+}
+
+func parseBool(value string) (bool, error) {
+ switch {
+ case strings.EqualFold(value, "true"),
+ strings.EqualFold(value, "yes"),
+ strings.EqualFold(value, "on"):
+ return true, nil
+ case strings.EqualFold(value, "false"),
+ strings.EqualFold(value, "no"),
+ strings.EqualFold(value, "off"),
+ value == "":
+ return false, nil
+ }
+
+ n, err := parseInt32(value)
+ if err != nil {
+ return false, fmt.Errorf("invalid boolean value %q", value)
+ }
+
+ return n != 0, nil
+}
+
+func parseInt32(value string) (int32, error) {
+ n64, err := parseInt64WithMax(value, math.MaxInt32)
+ if err != nil {
+ return 0, err
+ }
+
+ return intconv.Int64ToInt32(n64)
+}
+
+func parseInt(value string) (int, error) {
+ n64, err := parseInt64WithMax(value, int64(int(^uint(0)>>1)))
+ if err != nil {
+ return 0, err
+ }
+
+ return int(n64), nil
+}
+
+func parseInt64(value string) (int64, error) {
+ return parseInt64WithMax(value, int64(^uint64(0)>>1))
+}
+
+func parseInt64WithMax(value string, maxValue int64) (int64, error) {
+ if value == "" {
+ return 0, errors.New("empty value")
+ }
+
+ trimmed := strings.TrimLeft(value, " \t\n\r\f\v")
+ if trimmed == "" {
+ return 0, errors.New("empty value")
+ }
+
+ numPart := trimmed
+ factor := int64(1)
+
+ if last := trimmed[len(trimmed)-1]; last == 'k' || last == 'K' || last == 'm' || last == 'M' || last == 'g' || last == 'G' {
+ switch toLower(last) {
+ case 'k':
+ factor = 1024
+ case 'm':
+ factor = 1024 * 1024
+ case 'g':
+ factor = 1024 * 1024 * 1024
+ }
+
+ numPart = trimmed[:len(trimmed)-1]
+ }
+
+ if numPart == "" {
+ return 0, errors.New("missing integer value")
+ }
+
+ n, err := strconv.ParseInt(numPart, 0, 64)
+ if err != nil {
+ return 0, err
+ }
+
+ intMax := maxValue
+ intMin := -maxValue - 1
+
+ if n > 0 && n > intMax/factor {
+ return 0, errors.New("integer overflow")
+ }
+
+ if n < 0 && n < intMin/factor {
+ return 0, errors.New("integer overflow")
+ }
+
+ n *= factor
+
+ return n, nil
+}
+
+func truncateAtNUL(value string) string {
+ for i := range len(value) {
+ if value[i] == 0 {
+ return value[:i]
+ }
+ }
+
+ return value
+}
+
+func isSpace(ch byte) bool {
+ return ch == ' ' || ch == '\t'
+}
+
+func isWhitespace(ch byte) bool {
+ return ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r' || ch == '\v' || ch == '\f'
+}
+
+func isLetter(ch byte) bool {
+ return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')
+}
+
+func isDigit(ch byte) bool {
+ return ch >= '0' && ch <= '9'
+}
+
+func toLower(ch byte) byte {
+ if ch >= 'A' && ch <= 'Z' {
+ return ch + ('a' - 'A')
+ }
+
+ return ch
+}
generated by cgit v1.3.1-10-gc9f91 (git 2.54.0) at 2026-05-25 12:54:09 +0000