soft-serve

 1package common
 2
 3import (
 4	"fmt"
 5	"strconv"
 6	"strings"
 7
 8	gansi "charm.land/glamour/v2/ansi"
 9	"github.com/alecthomas/chroma/v2/lexers"
10	"github.com/charmbracelet/soft-serve/pkg/ui/styles"
11)
12
13// FormatLineNumber adds line numbers to a string.
14func FormatLineNumber(styles *styles.Styles, s string, color bool) (string, int) {
15	lines := strings.Split(s, "\n")
16	// NB: len() is not a particularly safe way to count string width (because
17	// it's counting bytes instead of runes) but in this case it's okay
18	// because we're only dealing with digits, which are one byte each.
19	mll := len(fmt.Sprintf("%d", len(lines)))
20	for i, l := range lines {
21		digit := fmt.Sprintf("%*d", mll, i+1)
22		bar := "│"
23		if color {
24			digit = styles.Code.LineDigit.Render(digit)
25			bar = styles.Code.LineBar.Render(bar)
26		}
27		if i < len(lines)-1 || len(l) != 0 {
28			// If the final line was a newline we'll get an empty string for
29			// the final line, so drop the newline altogether.
30			lines[i] = fmt.Sprintf(" %s %s %s", digit, bar, l)
31		}
32	}
33	return strings.Join(lines, "\n"), mll
34}
35
36// FormatHighlight adds syntax highlighting to a string.
37func FormatHighlight(p, c string) (string, error) {
38	zero := uint(0)
39	lang := ""
40	lexer := lexers.Match(p)
41	if lexer != nil && lexer.Config() != nil {
42		lang = lexer.Config().Name
43	}
44	formatter := &gansi.CodeBlockElement{
45		Code:     c,
46		Language: lang,
47	}
48	r := strings.Builder{}
49	styles := StyleConfig()
50	styles.CodeBlock.Margin = &zero
51	rctx := StyleRendererWithStyles(styles)
52	err := formatter.Render(&r, rctx)
53	if err != nil {
54		return "", err
55	}
56	return r.String(), nil
57}
58
59// UnquoteFilename unquotes a filename.
60// When Git is with "core.quotePath" set to "true" (default), it will quote
61// the filename with double quotes if it contains control characters or unicode.
62// this function will unquote the filename.
63func UnquoteFilename(s string) string {
64	name := s
65	if n, err := strconv.Unquote(`"` + s + `"`); err == nil {
66		name = n
67	}
68
69	name = strconv.Quote(name)
70	return strings.Trim(name, `"`)
71}