source: code/trunk/zs_ext.go@ 32

package main

import (
        "bytes"
        "log"
        "os"
        "path/filepath"
        "sort"
        "strconv"
        "strings"
        "time"

        "math"

        "github.com/drhodes/golorem"
        "github.com/jaytaylor/html2text"
)

// zs var <filename> -- returns list of variables and their values
// zs var <filename> <var...> -- returns list of variable values
func Var(args ...string) string {
        if len(args) == 0 {
                return "var: filename expected"
        } else {
                s := ""
                if vars, _, err := md(args[0], globals()); err != nil {
                        return "var: " + err.Error()
                } else {
                        if len(args) > 1 {
                                for _, a := range args[1:] {
                                        s = s + vars[a] + "\n"
                                }
                        } else {
                                for k, v := range vars {
                                        s = s + k + ":" + v + "\n"
                                }
                        }
                }
                return strings.TrimSpace(s)
        }
}

// zs lorem <n> -- returns <n> random lorem ipsum sentences
func Lorem(args ...string) string {
        if len(args) > 1 {
                return "lorem: invalid usage"
        }
        if len(args) == 0 {
                return lorem.Paragraph(5, 5)
        }
        if n, err := strconv.Atoi(args[0]); err == nil {
                return lorem.Paragraph(n, n)
        } else {
                return "lorem: " + err.Error()
        }
}

// zs datefmt <fmt> <date> -- returns formatted date from unix time
func DateFmt(args ...string) string {
        if len(args) == 0 || len(args) > 2 {
                return "datefmt: invalid usage"
        }
        if n, err := strconv.ParseInt(args[1], 10, 64); err == nil {
                return time.Unix(n, 0).Format(args[0])
        } else {
                return "datefmt: " + err.Error()
        }
}

// zs dateparse <fmt> <date> -- returns unix time from the formatted date
func DateParse(args ...string) string {
        if len(args) == 0 || len(args) > 2 {
                return "dateparse: invalid usage"
        }
        if d, err := time.Parse(args[0], args[1]); err != nil {
                return "dateparse: " + err.Error()
        } else {
                return strconv.FormatInt(d.Unix(), 10)
        }
}

// zs wc <file> -- returns word count in the file (markdown, html or amber)
func WordCount(args ...string) int {
        if os.Getenv("ZS_RECURSION") != "" {
                return 0
        }
        if len(args) != 1 {
                return 0
        }
        os.Setenv("ZS_RECURSION", "1")
        out := &bytes.Buffer{}
        if err := build(args[0], out, builtins(), globals()); err != nil {
                return 0
        }
        if s, err := html2text.FromString(string(out.Bytes())); err != nil {
                return 0
        } else {
                return len(strings.Fields(s))
        }
}

// zs timetoread <file> -- returns number of minutes required to read the text
func TimeToRead(args ...string) int {
        wc := WordCount(args...)
        return int(math.Floor(float64(wc)/200.0 + .5))
}

// zs ls <dir> <regexp>
func List(args ...string) []string {
        if len(args) != 2 {
                return []string{}
        }

        dir := args[0]
        mask := args[1]

        res := []string{}
        filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
                if err != nil {
                        return nil
                }
                if !info.IsDir() {
                        if ok, err := filepath.Match(mask, info.Name()); ok && err == nil {
                                res = append(res, path)
                        }
                }
                return nil
        })
        return res
}

// zs sort <key> <files...>
func Sort(args ...string) []string {
        delim := -1
        for i, s := range args {
                if s == "--" {
                        delim = i
                }
        }
        cmd := []string{"var", "title"}
        if delim != -1 {
                cmd = args[:delim]
                args = args[delim+1:]
        }

        sorted := map[string][]string{}
        sortedKeys := []string{}
        for _, f := range args {
                params := append(cmd, f)
                out := bytes.NewBuffer(nil)
                run(os.Args[0], params, globals(), out)
                val := string(out.Bytes())
                sorted[val] = append(sorted[val], f)
                sortedKeys = append(sortedKeys, val)
        }
        log.Println(sortedKeys)
        sort.Strings(sortedKeys)
        if !asc {
        }

        list := []string{}
        for _, k := range sortedKeys {
                vals := sorted[k]
                sort.Strings(vals)
                list = append(list, vals...)
        }
        return list
}