Add partial use of comments

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "spec"]
+	path = spec
+	url = https://github.com/mustache/spec

README.md

@@ -1,5 +1,5 @@
-# Templateless
-A lightweight, logicless templating library for the 
+# Mustacheless
+A subset of {{mustache}}, logicless templating library for the 
 [Odin programming language](https://odin-lang.org/).  This library allows you to
 define templates using placeholder variables within strings and replace them 
 with values from a provided dictionary.

decode.odin

@@ -0,0 +1,155 @@
+package mustache
+
+import "base:runtime"
+import "core:reflect"
+import "core:strings"
+import "core:mem"
+
+import "core:log"
+
+@private
+_clean_html :: proc(s: string) -> string {
+	ret:  strings.Builder
+
+	for c in s do switch c {
+	case '<': 
+		strings.write_string(&ret, "&lt;")
+	case '>':
+		strings.write_string(&ret, "&gt;")
+	case '&':
+		strings.write_string(&ret, "&amp;")
+	case '"':
+		strings.write_string(&ret, "&quot;")
+	case '\'':
+		strings.write_string(&ret, "&apos;")
+	case:
+		strings.write_rune(&ret, c)
+	}
+	
+	return strings.to_string(ret)
+}
+
+decode :: proc( v: any, key: string ) -> any {
+	ti := type_info_of(v.id)
+	variant := runtime.type_info_base(ti).variant
+
+	#partial switch i in variant {
+	case runtime.Type_Info_Enumerated_Array:
+		return decode(any{v.data, ti.id}, key)
+
+	case runtime.Type_Info_Union:
+		return decode(any{v.data, reflect.union_variant_typeid(v) }, key)
+	}
+
+	if key == "." {
+		return v
+	}
+
+	#partial switch i in variant {
+	case runtime.Type_Info_Struct:
+		newkey, err := strings.split_after_n(key, ".", 2)
+		
+		if err != nil {
+			return nil
+		}
+
+		defer delete(newkey)
+
+		newkey_0 := newkey[0]
+		newkey_1 := "."
+
+		if len(newkey) != 2 {
+			newkey_0 = newkey[0][:len(newkey[0])-1]
+			newkey_1 = newkey[1]
+		}
+
+		return decode( reflect.struct_field_value_by_name(v, newkey_0), newkey_1 )
+
+
+	case runtime.Type_Info_Map:
+		newkey, err := strings.split_after_n(key, ".", 2)
+
+		if err!= nil {
+			return nil
+		}
+
+		defer delete(newkey)
+
+		newkey_0 := newkey[0]
+		newkey_1 := "."
+
+		if len(newkey) == 2 {
+			newkey_0 = newkey[0][:len(newkey[0])-1]
+			newkey_1 = newkey[1]
+		}
+
+
+		m := (^mem.Raw_Map)(v.data)
+		ks, vs, _, _, _ := runtime.map_kvh_data_dynamic(m^, i.map_info)
+
+		for j in 0..<runtime.map_cap(m^) {
+			key_data := runtime.map_cell_index_dynamic(ks, i.map_info.ks, uintptr(j))
+			ky, ok := reflect.as_string(any{rawptr(key_data), i.key.id})
+
+			if !ok {
+				return nil
+			}
+
+			if ky == newkey_0 {
+				t := any{rawptr(runtime.map_cell_index_dynamic(vs, i.map_info.vs, uintptr(j))), i.value.id}
+				return decode(t, newkey_1 )
+			}
+		}
+
+		return nil
+	}
+
+	return  nil
+}
+
+@private 
+mustache_section :: proc( r: ^strings.Reader, v, p: any, section_key: string, inv: bool = false ) -> string {
+	tmp := mustache(r, v, section_key)
+	defer delete(tmp)
+
+	tmp2 := mustache(tmp, p, section_key)
+
+	if inv {
+		return tmp2
+	}
+
+	delete(tmp2)
+	return ""
+}
+
+section :: proc( r: ^strings.Reader, v: any, section_key: string, inv: bool = false ) -> string {
+	save := r.i
+
+	t := reflect.any_base(decode(v, section_key))
+	ti := type_info_of(t.id)
+
+	#partial switch i in runtime.type_info_base(ti).variant {
+	case runtime.Type_Info_Slice:
+		ret : string= ""
+		for i in 0..<reflect.length(t) {
+			elem :=reflect.index(t, i);
+			strings.reader_seek(r, save, .Start)
+
+			tmp := mustache_section(r, elem, v, section_key, !inv)
+			defer delete(tmp)
+
+			ret = strings.concatenate({ret, tmp})
+		}
+		return ret
+	case runtime.Type_Info_Boolean:
+		b, _ := reflect.as_bool(t)
+
+		return mustache_section(r, t, v, section_key, b~inv)
+	}
+
+	if t == nil {
+		return mustache_section(r, t, v, section_key, inv)
+	}
+
+	return mustache_section(r, t, v, section_key, !inv)
+}

mustache.odin

@@ -0,0 +1,157 @@
+package mustache
+
+import "core:fmt"
+import "core:strings"
+
+state :: enum {
+	writing,
+	reading_key,
+	open_bracket,
+	close_bracket,
+}
+
+mustache :: proc{mustache_reader, mustache_string}
+
+mustache_string :: proc(fmt: string, data: any , section_key: string = "") -> string {
+	r : strings.Reader
+	strings.reader_init(&r, fmt)
+	return  mustache(&r, data, section_key)
+}
+
+mustache_reader :: proc(r: ^strings.Reader, data: any, section_key: string = "" ) -> string {
+	/*
+	This is the main parser for mustache templates, it's a recursive decent parser, that works as a state machine,
+	it manipulates the processed template with data, `ret`, and the key to element on data 	`key`, according to the states. 
+	This approach let us process the data as fast as posible.
+	*/
+
+	ret, key: strings.Builder
+	defer strings.builder_destroy(&key)
+
+	s:= state.writing
+
+	for {
+		c, _, err := strings.reader_read_rune(r); 
+
+		if err != nil  {
+			break
+		}
+
+		switch c {
+		case '{':
+			switch s {
+			case .open_bracket:
+				s=.reading_key
+			case .close_bracket:
+				strings.write_string(&ret, "}{" )
+				s=.writing
+			case .writing:
+				s=.open_bracket
+			case .reading_key:
+				strings.write_rune(&key, '{' )
+			}
+		case '}':
+			switch s {
+			case .open_bracket:
+				strings.write_string(&ret, "{}" )
+				s=.writing
+			case .close_bracket:
+				// Work with key
+				skey := strings.to_string(key)
+				strings.builder_reset(&key)
+				s=.writing
+
+				if len(skey) == 0 {
+					break
+				}
+
+				switch skey[0] {
+				case '/':
+					if skey[1:] == section_key {
+						return strings.to_string(ret)
+					}
+				case '#':
+					strings.write_string(&ret, section(r, data, skey[1:]) )
+				case '^':
+					strings.write_string(&ret, section(r, data, skey[1:], true) )
+				case '&':
+					strings.write_string(&ret, fmt.tprintf("%v",decode(data, skey[1:])) )
+				case '!':
+				case:
+					dec := decode(data, skey)
+
+					if dec == nil {
+						// If not decoded write as key
+						strings.write_string(&ret, "{{" )
+						strings.write_string(&ret, skey )
+						strings.write_string(&ret, "}}" )
+						break
+					}
+					
+					clean :=  _clean_html(fmt.tprintf("%v", dec))
+					defer delete(clean)
+
+					strings.write_string(&ret, clean)
+				}
+			case .writing:
+				strings.write_rune(&ret, '}' )
+				s=.writing
+			case .reading_key:
+				s=.close_bracket
+			}
+		case:
+			switch s {
+			case .open_bracket:
+				strings.write_rune(&ret, '{' )
+				strings.write_rune(&ret, c )
+				s=.writing
+			case .close_bracket:
+				strings.write_rune(&key, '}' )
+				strings.write_rune(&key, c )
+				s=.reading_key
+			case .writing:
+				strings.write_rune(&ret, c )
+				s=.writing
+			case .reading_key:
+				strings.write_rune(&key, c )
+			}
+		}
+	}
+
+	switch s {
+	case .open_bracket:
+		strings.write_rune(&ret, '{' )
+	case .reading_key:
+		strings.write_string(&ret,"{{")
+		strings.write_string(&ret,strings.to_string(key))
+	case .close_bracket:
+		strings.write_string(&ret,"{{")
+		strings.write_string(&ret,strings.to_string(key))
+		strings.write_rune(&ret, '}' )
+	case .writing:
+	}
+
+	return strings.to_string(ret)
+}
+
+/*
+1-Clause BSD NON-AI License
+
+Copyright (c) 2025
+NVIAM. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. The source code and any modifications made to it may not be used for the purpose of training or improving machine learning algorithms,
+including but not limited to artificial intelligence, natural language processing, or data mining. This condition applies to any derivatives,
+modifications, or updates based on the Software code. Any usage of the source code in an AI-training dataset is considered a breach of this License.
+
+THIS SOFTWARE IS PROVIDED BY NVIAM “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL NVIAM BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/

template.odin

@@ -1,118 +0,0 @@
-package template
-
-import "core:strings"
-
-@private
-state :: enum {
-	writing,
-	reading_key,
-	open_bracket,
-	close_bracket,
-}
-
-/*
-Input:
-- fmt: A string with placeholders in the form `{{key}}`.
-- dict: A map from string to string, where each key corresponds to a placeholder in the format string.
-
-Returns:
-A new string with all placeholders replaced by their corresponding values from 
-the dictionary. If a key is missing in the dictionary, the placeholder is 
-replaces with an empty string.
-*/
-template :: proc(fmt: string, dict: map[string]string ) -> string {
-	/*
-	template works as a state machine, it manipulates `b` (returned string)
-	and `key` (placeholder string), according to  the states. No error
-	returns are needed because if `key` is not close it writes it as
-	it's not a placeholder
-	*/
-
-	b, key: strings.Builder
-	defer strings.builder_destroy(&key)
-
-	s:= state.writing
-
-	for c in fmt do switch c {
-	case '{':
-		switch s {
-		case .open_bracket:
-			s=.reading_key
-		case .close_bracket:
-			strings.write_string(&b, "}{" )
-			s=.writing
-		case .writing:
-			s=.open_bracket
-		case .reading_key:
-			strings.write_rune(&key, '{' )
-		}
-	case '}':
-		switch s {
-		case .open_bracket:
-			strings.write_string(&b, "{}" )
-			s=.writing
-		case .close_bracket:
-			strings.write_string(&b, dict[strings.to_string(key)] )
-			strings.builder_reset(&key)
-			s=.writing
-		case .writing:
-			strings.write_rune(&b, '}' )
-			s=.writing
-		case .reading_key:
-			s=.close_bracket
-		}
-	case:
-		switch s {
-		case .open_bracket:
-			strings.write_rune(&b, '{' )
-			strings.write_rune(&b, c )
-			s=.writing
-		case .close_bracket:
-			strings.write_rune(&key, '}' )
-			strings.write_rune(&key, c )
-			s=.reading_key
-		case .writing:
-			strings.write_rune(&b, c )
-			s=.writing
-		case .reading_key:
-			strings.write_rune(&key, c )
-		}
-	}
-
-	switch s {
-	case .open_bracket:
-		strings.write_rune(&b, '{' )
-	case .reading_key:
-		strings.write_string(&b,"{{")
-		strings.write_string(&b,strings.to_string(key))
-	case .close_bracket:
-		strings.write_string(&b,"{{")
-		strings.write_string(&b,strings.to_string(key))
-		strings.write_rune(&b, '}' )
-	case .writing:
-	}
-
-	return strings.to_string(b)
-}
-
-/*
-1-Clause BSD NON-AI License
-
-Copyright (c) 2025
-NVIAM. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-
-2. The source code and any modifications made to it may not be used for the purpose of training or improving machine learning algorithms,
-including but not limited to artificial intelligence, natural language processing, or data mining. This condition applies to any derivatives,
-modifications, or updates based on the Software code. Any usage of the source code in an AI-training dataset is considered a breach of this License.
-
-THIS SOFTWARE IS PROVIDED BY NVIAM “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL NVIAM BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/

testing.odin

@@ -1,108 +1,62 @@
 #+feature dynamic-literals
 #+private
-package template
+package mustache
 
+import "core:os"
+import "core:log"
 import "core:testing"
+import "core:encoding/json"
+
+data_struct :: union {
+	map[string]data_struct,
+	[]data_struct,
+	string,
+	bool,
+}
+
+test_struct :: struct {
+	overview: string,
+	tests: []struct{
+		name, desc, template, expected: string,
+		data: data_struct
+	}
+}
 
 @(test)
-test1 :: proc(t: ^testing.T){
-	fmt := "{"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp==fmt, tmp)
+spec_test :: proc(t: ^testing.T){
+	test_files := []string { 
+		"./spec/specs/sections.json",
+		"./spec/specs/interpolation.json",
+		"./spec/specs/inverted.json",
+		"./spec/specs/comments.json",
+		/*
+		"./spec/specs/partials.json",
+		"./spec/specs/delimiters.json",
+		*/
 	}
-@(test)
-test2 :: proc(t: ^testing.T){
-	fmt := "}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp==fmt, tmp)
-}
-@(test)
-test3 :: proc(t: ^testing.T){
-	fmt := "{{"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp==fmt, tmp)
-}
-@(test)
-test4 :: proc(t: ^testing.T){
-	fmt := "{{}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp==fmt, tmp)
-}
-@(test)
-test5 :: proc(t: ^testing.T){
-	fmt := "{{}}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="", tmp)
-}
-@(test)
-test6 :: proc(t: ^testing.T){
-	fmt := "{{foo}}"
 
-	dict := map[string]string{"foo"="var"}
-	defer delete(dict)
+	for i in test_files { 
+		data, err:=os.read_entire_file_from_filename_or_err(i)
+		defer delete(data)
 
-	tmp := template(fmt, dict)
-	defer delete(tmp)
-	testing.expect(t, tmp=="var", tmp)
+		if err != nil {
+			testing.expectf(t, false, "%v", err)
 		}
-@(test)
-test7 :: proc(t: ^testing.T){
-	fmt := "{{{}}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="", tmp)
+
+		test: test_struct
+
+		json.unmarshal(data, &test, allocator=context.temp_allocator)
+
+		failed := 0
+		for j in test.tests {
+			ret := mustache(j.template, j.data)
+			defer delete(ret)
+
+			if ret!=j.expected {
+				log.warnf( "[%s:%s]: %s", i, j.name, j.desc )
+				failed += 1
 			}
-@(test)
-test8 :: proc(t: ^testing.T){
-	fmt := "{{}}}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="}", tmp)
 		}
-@(test)
-test9 :: proc(t: ^testing.T){
-	fmt := "{{{}}}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="}", tmp)
+		log.infof( "[%s] Passed: (%d/%d)", i, len(test.tests)-failed, len(test.tests) )
 	}
-@(test)
-test10 :: proc(t: ^testing.T){
-	fmt := "{{} }}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="", tmp)
-}
-@(test)
-test11 :: proc(t: ^testing.T){
-	fmt := "{{{} }}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="", tmp)
-}
-@(test)
-test12 :: proc(t: ^testing.T){
-	fmt := " {{{} }}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp==" ", tmp)
-}
-@(test)
-test13 :: proc(t: ^testing.T){
-	fmt := "{{{} }} "
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp==" ", tmp)
-}
-@(test)
-test14 :: proc(t: ^testing.T){
-	fmt := "{{{}}}"
-	tmp := template(fmt,{})
-	defer delete(tmp)
-	testing.expect(t, tmp=="}", tmp)
 }