Text Processingflags: g

Terraform Resource Block Header

Match the opening line of a Terraform `resource "type" "name" {` block, capturing the resource type and local name.

Available in

JavaScript / ECMAScript code

jsJavaScript

const re = new RegExp("resource\\s+\"([\\w\\-]+)\"\\s+\"([\\w\\-]+)\"\\s*\\{", "g");
const input = "resource \"aws_s3_bucket\" \"main\" { bucket = \"my-app\" }";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

Python (re) code

pyPython

import re

pattern = re.compile(r"resource\\s+\"([\\w\\-]+)\"\\s+\"([\\w\\-]+)\"\\s*\\{")
input_text = "resource \"aws_s3_bucket\" \"main\" { bucket = \"my-app\" }"
for m in pattern.finditer(input_text):
    print(m.group(0))

Stdlib `re` module — no third-party dependency. Works on Python 3.6+.

Go (RE2) code

goGo

package main

import (
	"fmt"
	"regexp"
)

func main() {
	re := regexp.MustCompile(`resource\s+"([\w\-]+)"\s+"([\w\-]+)"\s*\{`)
	input := `resource "aws_s3_bucket" "main" { bucket = "my-app" }`
	for _, match := range re.FindAllString(input, -1) {
		fmt.Println(match)
	}
}

Uses `regexp.MustCompile` (panics on bad patterns at startup) and `FindAllString` for all matches.

Pattern

regexengine-agnostic

resource\s+"([\w\-]+)"\s+"([\w\-]+)"\s*\{   (flags: g)

Raw source: resource\s+"([\w\-]+)"\s+"([\w\-]+)"\s*\{

How it works

resource\s+ matches the keyword and required whitespace. "([\w\-]+)" captures the resource type (e.g. `aws_instance`). "([\w\-]+)" captures the local name. The trailing `\s*\{` confirms a block opener (so we don't match string-literal `resource "x" "y"` in a comment).