tmpltool 1.5.0

A fast and simple command-line template rendering tool using MiniJinja templates with environment variables
Documentation 
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# String Filters Demonstration
# ===========================

## Case Conversion Filters

### to_snake_case
Input: "HelloWorld"
Output: {{ "HelloWorld" | to_snake_case }}

Input: "hello-world"
Output: {{ "hello-world" | to_snake_case }}

### to_camel_case
Input: "hello_world"
Output: {{ "hello_world" | to_camel_case }}

Input: "hello-world"
Output: {{ "hello-world" | to_camel_case }}

### to_pascal_case
Input: "hello_world"
Output: {{ "hello_world" | to_pascal_case }}

Input: "hello-world"
Output: {{ "hello-world" | to_pascal_case }}

### to_kebab_case
Input: "HelloWorld"
Output: {{ "HelloWorld" | to_kebab_case }}

Input: "hello_world"
Output: {{ "hello_world" | to_kebab_case }}

## Indentation Filters

### indent (default 4 spaces)
Input: "line1\nline2"
Output:
{{ "line1\nline2" | indent }}

### indent (custom 2 spaces)
Input: "host: localhost\nport: 8080"
Output:
{{ "host: localhost\nport: 8080" | indent(2) }}

### dedent
Input: "  line1\n  line2"
Output:
{{ "  line1\n  line2" | dedent }}

## Quote Filters

### quote (default double)
Input: "hello world"
Output: {{ "hello world" | quote }}

### quote (single)
Input: "hello world"
Output: {{ "hello world" | quote("single") }}

### quote (backtick)
Input: "hello world"
Output: {{ "hello world" | quote("backtick") }}

### escape_quotes
Input: It's a "test"
Output: {{ "It's a \"test\"" | escape_quotes }}

## Padding Filters

### pad_left (default space)
Input: "42"
Output: {{ "42" | pad_left(5) }}|

### pad_left (with zero)
Input: "1"
Output: {{ "1" | pad_left(4, "0") }}

### pad_right (default space)
Input: "42"
Output: |{{ "42" | pad_right(5) }}|

### pad_right (with dash)
Input: "test"
Output: {{ "test" | pad_right(10, "-") }}

## Repeat Filter

### repeat (3 times)
Input: "ab"
Output: {{ "ab" | repeat(3) }}

### repeat (separator)
Input: "="
Output: {{ "=" | repeat(40) }}

## Reverse Filter

### reverse
Input: "hello"
Output: {{ "hello" | reverse }}

Input: "12345"
Output: {{ "12345" | reverse }}

## Filter Chaining Examples

### Example 1: Convert and reverse
Input: "hello_world"
Steps: to_pascal_case → reverse
Output: {{ "hello_world" | to_pascal_case | reverse }}

### Example 2: Repeat and quote
Input: "test"
Steps: repeat(3) → quote("single")
Output: {{ "test" | repeat(3) | quote("single") }}

### Example 3: Convert and pad
Input: "api_key"
Steps: to_camel_case → pad_right(15, "_")
Output: {{ "api_key" | to_camel_case | pad_right(15, "_") }}

## Real-World Use Cases

### 1. Generating Code Identifiers
{% set field_name = "user_email_address" %}
Database column: {{ field_name }}
Python variable: {{ field_name }}
JavaScript variable: {{ field_name | to_camel_case }}
Class name: {{ field_name | to_pascal_case }}
CSS class: {{ field_name | to_kebab_case }}

### 2. YAML Configuration Indentation
server:
{{ "host: localhost" | indent(2) }}
{{ "port: 8080" | indent(2) }}
database:
{{ "host: postgres" | indent(2) }}
{{ "port: 5432" | indent(2) }}

### 3. Padding for Alignment
{% set items = ["1", "42", "999"] %}
Item IDs:
{% for item in items %}
  ID: {{ item | pad_left(5, "0") }}
{% endfor %}

### 4. Creating Separators
{{ "=" | repeat(50) }}
SECTION HEADER
{{ "=" | repeat(50) }}

{{ "-" | repeat(50) }}
SUBSECTION
{{ "-" | repeat(50) }}