diff options
Diffstat (limited to 'vendor/github.com/wiggin77/cfg/ini/parser.go')
-rw-r--r-- | vendor/github.com/wiggin77/cfg/ini/parser.go | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/vendor/github.com/wiggin77/cfg/ini/parser.go b/vendor/github.com/wiggin77/cfg/ini/parser.go deleted file mode 100644 index 28916409..00000000 --- a/vendor/github.com/wiggin77/cfg/ini/parser.go +++ /dev/null @@ -1,142 +0,0 @@ -package ini - -import ( - "fmt" - "strings" - - "github.com/wiggin77/merror" -) - -// LF is linefeed -const LF byte = 0x0A - -// CR is carriage return -const CR byte = 0x0D - -// getSections parses an INI formatted string, or string containing just name/value pairs, -// returns map of `Section`'s. -// -// Any name/value pairs appearing before a section name are added to the section named -// with an empty string (""). Also true for Linux-style config files where all props -// are outside a named section. -// -// Any errors encountered are aggregated and returned, along with the partially parsed -// sections. -func getSections(str string) (map[string]*Section, error) { - merr := merror.New() - mapSections := make(map[string]*Section) - lines := buildLineArray(str) - section := newSection("") - - for _, line := range lines { - name, ok := parseSection(line) - if ok { - // A section name encountered. Stop processing the current one. - // Don't add the current section to the map if the section name is blank - // and the prop map is empty. - nameCurr := section.GetName() - if nameCurr != "" || section.hasKeys() { - mapSections[nameCurr] = section - } - // Start processing a new section. - section = newSection(name) - } else { - // Parse the property and add to the current section, or ignore if comment. - if k, v, comment, err := parseProp(line); !comment && err == nil { - section.setProp(k, v) - } else if err != nil { - merr.Append(err) // aggregate errors - } - } - - } - // If the current section is not empty, add it. - if section.hasKeys() { - mapSections[section.GetName()] = section - } - return mapSections, merr.ErrorOrNil() -} - -// buildLineArray parses the given string buffer and creates a list of strings, -// one for each line in the string buffer. -// -// A line is considered to be terminated by any one of a line feed ('\n'), -// a carriage return ('\r'), or a carriage return followed immediately by a -// linefeed. -// -// Lines prefixed with ';' or '#' are considered comments and skipped. -func buildLineArray(str string) []string { - arr := make([]string, 0, 10) - str = str + "\n" - - iLen := len(str) - iPos, iBegin := 0, 0 - var ch byte - - for iPos < iLen { - ch = str[iPos] - if ch == LF || ch == CR { - sub := str[iBegin:iPos] - sub = strings.TrimSpace(sub) - if sub != "" && !strings.HasPrefix(sub, ";") && !strings.HasPrefix(sub, "#") { - arr = append(arr, sub) - } - iPos++ - if ch == CR && iPos < iLen && str[iPos] == LF { - iPos++ - } - iBegin = iPos - } else { - iPos++ - } - } - return arr -} - -// parseSection parses the specified string for a section name enclosed in square brackets. -// Returns the section name found, or `ok=false` if `str` is not a section header. -func parseSection(str string) (name string, ok bool) { - str = strings.TrimSpace(str) - if !strings.HasPrefix(str, "[") { - return "", false - } - iCloser := strings.Index(str, "]") - if iCloser == -1 { - return "", false - } - return strings.TrimSpace(str[1:iCloser]), true -} - -// parseProp parses the specified string and extracts a key/value pair. -// -// If the string is a comment (prefixed with ';' or '#') then `comment=true` -// and key will be empty. -func parseProp(str string) (key string, val string, comment bool, err error) { - iLen := len(str) - iEqPos := strings.Index(str, "=") - if iEqPos == -1 { - return "", "", false, fmt.Errorf("not a key/value pair:'%s'", str) - } - - key = str[0:iEqPos] - key = strings.TrimSpace(key) - if iEqPos+1 < iLen { - val = str[iEqPos+1:] - val = strings.TrimSpace(val) - } - - // Check that the key has at least 1 char. - if key == "" { - return "", "", false, fmt.Errorf("key is empty for '%s'", str) - } - - // Check if this line is a comment that just happens - // to have an equals sign in it. Not an error, but not a - // useable line either. - if strings.HasPrefix(key, ";") || strings.HasPrefix(key, "#") { - key = "" - val = "" - comment = true - } - return key, val, comment, err -} |