Export Funcs function to help enable usage of gomplate as library

[dcwangmit01]

Fixes #371

• Exported a few functions by first letter capitalization
• Demo program found at:
  https://gist.github.com/dcwangmit01/e9e58dd123e0a8eb48c2f4e8ffa16d5a

[hairyhenderson]

@dcwangmit01 I wonder if all you need is to export initFuncs - then you could pass that to tmpl.Funcs 🤔

[dcwangmit01]

@hairyhenderson Gosh darn I think you're right. I'll give it a go, and update this PR.

[hairyhenderson]

You should be good to go with:

diff --git a/funcs.go b/funcs.go
index 7d8fd3a..e8dd76f 100644
--- a/funcs.go
+++ b/funcs.go
@@ -7,8 +7,8 @@ import (
        "github.com/hairyhenderson/gomplate/funcs"
 )
 
-// initFuncs - The function mappings are defined here!
-func initFuncs(d *data.Data) template.FuncMap {
+// Funcs - The function mappings are defined here!
+func Funcs(d *data.Data) template.FuncMap {
        f := template.FuncMap{}
        funcs.AddDataFuncs(f, d)
        funcs.AWSFuncs(f)
diff --git a/gomplate.go b/gomplate.go
index 11a8ae8..bca66f7 100644
--- a/gomplate.go
+++ b/gomplate.go
@@ -70,7 +70,7 @@ func newGomplate(d *data.Data, leftDelim, rightDelim string) *gomplate {
        return &gomplate{
                leftDelim:  leftDelim,
                rightDelim: rightDelim,
-               funcMap:    initFuncs(d),
+               funcMap:    Funcs(d),
        }
 }

Note that I changed the name from initFuncs to Funcs - gomplate.Funcs(d) seems like a good enough function name...

[dcwangmit01]

@hairyhenderson Your changed worked perfectly. I've updated this PR with it 😅 , as well as the demo code in the gist.

[hairyhenderson]

Thanks for this, @dcwangmit01 - hope this is useful to you, and I'm sure it'll be useful to others 🙂

[dcwangmit01]

Thanks for all the help @hairyhenderson, and the quick response. Makes contributing to this project a no-brainer.

[hairyhenderson]

🙇