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HCL is the Hashicorp Configuration Language used in Terraform. This is a java Parser for parsing HCL and converting to Map objects.

License: Apache License 2.0

Java 61.27% Lex 14.42% Groovy 24.31%

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hcl4j's Issues

ArrayList cannot be cast to Map

The following .tf file results in a ClassCastException:

locals {
  domains = ["a.example.com", "b.example.com"]
}

resource "aws_acm_certificate" "cert_1" {
  for_each = local.domains
  domain_name = each.key
  subject_alternative_names = [each.key]
  validation_method = "DNS"
}
locals {
 c = aws_acm_certificate.cert_1["a.example.com"].domain_validation_options
}

in hcl4j 0.6.1 while it works fine in hcl4j 0.4.4.

Exception head

    java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.util.Map
        at com.bertramlabs.plugins.hcl4j.HCLParser.processEvaluation(HCLParser.java:875)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:459)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:641)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:421)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:421)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:421)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:323)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:121)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:108)
	at com.mycode.MyCode(MyCode.java:19)

Workaround

Merge the two locals{} into one:

locals {
  domains = ["a.example.com", "b.example.com"]
  c = aws_acm_certificate.cert_1["a.example.com"].domain_validation_options
}

resource "aws_acm_certificate" "cert_1" {
  for_each = local.domains
  domain_name = each.key
  subject_alternative_names = [each.key]
  validation_method = "DNS"
}

and the ClassCastException goes away.
(and you land with #24 which I think is another problem)

Parsing error when there are methods inside the varaibles.tf files

Hi,

Thanks for the library, it works most of the case, However I am just facing one issue with this when we have the content as below, even if it gives that method string as it is in the object notation, it would be good.

alarm_free_storage_size_threshold = ceil(
var.alarm_free_storage_pct_threshold * local.alarm_storage_size * 1073741824 / 100
)

database_parameters = concat(
var.database_parameters,
local.mandatory_database_parameters
)

Regards
Pari.V

Lexing error with object value

Our .tfvars files often contain object values like:

my_object = {
  object_elem_a: 1,
  object_elem_b: 2
}

When I try to parse a file containing one of these with HCLParser, I get the following:

com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(o) - state: 6> found on line: 2 col: 3

	at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:1388)
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:307)
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:274)
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:252)
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:217)

It appears that this is being interpreted as a block rather than an object value.

Lexing error with Exclamation marks (!)

Context: Started using hcl4j to parse yet another Terraform codebase in my org and I encounter another batch of errors. Thus I thought I should report them.

The following seems to be a legit Terraform code:

locals {
  maybe = true
  perhaps = ! local.maybe
}

while it results in the error:

    com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(!) - state: 14> found on line: 4 col: 13
        at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:1368)

Get exception while parsing arrays with comments in the end

I am receiving error while parsing the following hcl files:

cidr-blocks = [
  "10.12.22.22/24", # Test
  "10.65.0.0/23",  # Example
]

Parsing is good when I take "# Example" out. The error messages is like below,

com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(]) - state: 14> found on line: 4 col: 1
at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:993)

Thanks, in advance.

Any API to convert back Map to HCL Terraform Script

Hi,

with parse API I have parsed a terraform script and updated 1 resource inside the Map.
Now, how I will again convert back the change in terraform script.

Do hcl4j provide any API for that?
Or any other lib using which I can achieve that

thanks in advance.

Error when comment and variable declared are present in the same line

Context:
If the variable declaration and the comment are present in the same line then there is a parsing error.
Works fine if the comment is present in a new line.

Example:
user = "ec2-user" # comment regarding the variable

Error:

Illegal character <(=) - state: 14> 
com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(=) - state: 14>
	at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:1388) ~[hcl4j-0.6.3.jar:?]
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:307) ~[hcl4j-0.6.3.jar:?]
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:121) ~[hcl4j-0.6.3.jar:?]
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:108) ~[hcl4j-0.6.3.jar:?]

Going from objects to TF file?

Any plans to do the reverse? Go from parsed objects back into Terraform file?

StackOverflowError when self referencing attribute

The following code:

module "example" {
  source = "../../modules/my-example"
  
  bad_property_id = "${module.example.bad_property_id}"
}

fails with:

Exception in thread "main" java.lang.StackOverflowError
	at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:440)
	at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:681)
	at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:615)
	at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:681)
	at com.bertramlabs.plugins.hcl4j.HCLParser.processEvaluation(HCLParser.java:1208)
	at com.bertramlabs.plugins.hcl4j.HCLParser.processEvaluation(HCLParser.java:1082)
[...]

when running new HCLParser().parse() against it.

Using hcl4j 0.9.1 and 0.7.7

slf4j-parent having multiple vulnerabilities

Hi guys....first of all I want to thank you for this amazing project.
Is there any chance to remove slf4j-parent library from dependencies because that library has multiple vulnerabilities and all security scanning tools are RED because of this? Thanks in advance.

https://mvnrepository.com/artifact/org.slf4j/slf4j-parent/1.7.26

variable resolution limitation.md

**code : **

resource "oci_identity_compartment" "testcompartment1" {
#Required
compartment_id = var.compartment_ocid
description = "demo_compartment"
name = "demo_compartment1"
}

** coresponding parsemap :**

resource={
oci_identity_compartment={
testcompartment1={
compartment_id=null,
description=demo_compartment,
name=demo_compartment1
}
}
}

parser is working fine with name,description.
when it comes to variable resolution in (compartment_id = var.compartment_ocid)
var.compartment_ocid is parsed as either "null" or "com.bertramlabs.plugins.hcl4j.RuntimeSymbols.Variable@56cbfb61"

issue :
is there anyway so that i can get variable resolution feature included in the parser

Hacktoberfest?

@davydotcom how about opting in the repository to Hacktoberfest?
(you need to add the hacktoberfest label to the repository)

It looks the project could gain some contributions this way.

Getting exception while parsin the HCL formatted string

Thanks for update.
I have string in this HCL format.
appId: 1
transactionId: 1
txnViolationConfig {
txnKpiType: FALIURE_PERCENTAGE
}

Map<String,Object> mapObject = new HCLParser().parse(string);

And when i m trying to parse this string, I am getting the exception as below:

Exception in thread "main" com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(t) - state: 6> found on line: 4 col: 3
at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:993)
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:186)
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:62)
at ProtobufConvert.main(ProtobufConvert.java:47)

Thanks, in advance.

Error processing jsonencode function

There is an issue when parsing a file with a resource that uses the Terraform jsonencode function. For example:

resource "aws_ecs_task_definition" "service" {
  family = "service"
  container_definitions = jsonencode([
    {
      name      = "first"
      image     = "service-first"
      cpu       = 10
      memory    = 512
      essential = true
      portMappings = [
        {
          containerPort = 80
          hostPort      = 80
        }
      ]
    },
    {
      name      = "second"
      image     = "service-second"
      cpu       = 10
      memory    = 256
      essential = true
      portMappings = [
        {
          containerPort = 443
          hostPort      = 443
        }
      ]
    }
  ])

  volume {
    name      = "service-storage"
    host_path = "/ecs/service-storage"
  }

  placement_constraints {
    type       = "memberOf"
    expression = "attribute:ecs.availability-zone in [us-west-2a, us-west-2b]"
  }
}

When executing the HCLParser::parse function for this example, we got a HCLParserException for the line of the jsonencode. Is the library supposed to be able to parse this function?

Anyway, if we set the ignoreParseExceptions to true, the error is ignored, but the parsing of the file is stopped at the point the exception was raised instead of trying to parse the rest of the document. In this cases, IMO a better behaviour would be to ignore the field where the error appeared and try to get the rest of the components of the HCL file.

Support for Complex types

While defining list and maps with Collection Types e.g.

variable "variable_name" {
  type = map(object({
     field1 = string
     field2 = list(string)
  }))
  default = {}
}

Failure is raised while parrsing. I know it's 0.12 which is not supported yet here, but would be nice to have a capability to set a lenient mode intenationally to ignore colection types definitions. So error will not be raised at ( when type: map(...) is defined. And collection type will be skipped.
This will allow us to use collection types and not rollback our current configuration.

StackOverflowError when accessing resource index

When trying to parse this:

  locals {
    enabled = (var.enable ? 1 : 0)
  }

  resource "aws_iam_user" "sync" {
    count = local.enabled
    name = "${'$'}{var.sync_username}-${'$'}{var.idp_name}"
    tags = var.tags
  }

  resource "aws_iam_policy" "list_roles" {
    count = local.enabled
    name   = "list-roles-${'$'}{var.sync_username}-${'$'}{var.idp_name}"
    policy = file("${'$'}{path.module}/list-policy.json")
    tags   = var.tags
  }

  resource "aws_iam_policy_attachment" "this" {
    count = local.enabled
    name       = "saml-role-sync-policy"
    users      = [aws_iam_user.sync[0].name]
    policy_arn = aws_iam_policy.list_roles[0].arn
  }

  resource "aws_iam_access_key" "sync_creds" {
    count = local.enabled
    user = aws_iam_user.sync[0].name
  }

I get this error:

Infinite recursion (StackOverflowError) (through reference chain: com.bertramlabs.plugins.hcl4j.symbols.HCLArray[\"children\"]->java.util.ArrayList[0]->com.bertramlabs.plugins.hcl4j.symbols.HCLValue[\"parent\"]->com.bertramlabs.plugins.hcl4j.symbols.HCLArray[\"children\"]->java.util.ArrayList[0]->com.bert","text":"locals {\n  enabled = (var.enable ? 1 : 0)\n}\n\nresource \"aws_iam_user\" \"sync\" {\n  count = local.enabled\n  name = \"${var.sync_username}-${var.idp_name}\"\n  tags = var.tags\n}\n\nresource \"aws_iam_policy\" \"list_roles\" {\n  count = local.enabled\n  name   = \"list-roles-${var.sync_username}-${var.idp_name}\"\n  policy = file(\"${path.module}/list-policy.json\")\n  tags   = var.tags\n}\n\nresource \"aws_iam_policy_attachment\" \"this\" {\n  count = local.enabled\n  name       = \"saml-role-sync-policy\"\n  users      = [aws_iam_user.sync[0].name]\n  policy_arn = aws_iam_policy.list_roles[0].arn\n}\n\nresource \"aws_iam_access_key\" \"sync_creds\" {\n  count = local.enabled\n  user = aws_iam_user.sync[0].name\n}

This "trimmed down" example also gets a similar error:

  resource "something" "here" {
    count = 1
    name  = "bobby"
  }

  resource "something" "there" {
    count = 1
    name  = something.here[0].name
  }

It doesn't seem to like the something.here[0].name. Here is my call:

(HCLParser().parse(file.byteInputStream(), "UTF-8", false)

I am using 0.6.8 of hcl4j.

Question - parsing to some AST?

Question: @davydotcom do you have any plans for the parsing outcome to be more strongly-typed?
i.e. introduce types for Resources, etc.

Context: I know you can have tons of different resource types and we cannot have object representation hard-coded for any of them. Yet, currently when trying to use the library for parsing my .tf files I end up having:
results.get("resource") which I need to cast to a Map<String, String> and then .get("the_resource_type_I_know") and then I get a Map instance which makes some sense (resource id -> Map of properties).

version 0.3.3 unable to parse simple hcl

After I upgrading to version 0.3.3, I got errors when I am parsing the following,

variable "cluster-name" {
  type = string
}

The error message is as below. The same input works with 0.2.3.

com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError) (through reference chain: com.bertramlabs.plugins.hcl4j.symbols

Thank you for checking this.

Lexing error with dash in a comment

The following .tf file results in a HCLParserException:

terraform {
  backend "s3" {
    bucket = "my-configuration"     # in my-main account
    key = "my-terraform-state"
    region = "us-west-1"
  }
}

in hcl4j 0.6.1 while works fine in hcl4j 0.4.4.

Exception

com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(=) - state: 14> found on line: 4 col: 9
at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:1388)	
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:307)	
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:274)	
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:198)	
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:181)	
at com.my.code.ParsingTerraform$.loadFile(ParsingTerraform.scala:40)

Workaround

Move the comment to separate line. This works fine:

terraform {
  backend "s3" {
    # in my-main account
    bucket = "my-configuration"
    key = "my-terraform-state"
    region = "us-west-1"
  }
}

Parsing Error with $ char in value present in for loop

Version: 0.7.3

In the below example ${key} is causing the parsing error. It works fine if the value of Name attribute is set as "any string value"

locals {
  list = {for key in toset(["value1", "value2"]) :
    replace(key, ".", "_") =>
    {
      key = key
      tags = { Name = "${id}-${key}" }
  } }
}

This is noticed only when for loop is used the, parsing works fine in other cases for example -

locals {
  dynamodb_table = "${csm-eks-tfstatelock} - ${sdf}"
}

Error Message

java.lang.RuntimeException: com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <({) - state: 50> found on line: 6 col: 34
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:320)
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:123)
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:110)

error: incompatible types: long cannot be converted to Integer HCLBlock block = new HCLBlock(blockNames,currentBlock,yyline,yycolumn-1,yychar-1); ^

Upgrade Gradle from 6.5

The project currently uses Gradle 6.5. It could be upgraded to current 7.6.

Is the repo hosted in Maven Central?

Hey, I was trying to use the parser for variables parsing of terraform scripts but I am unable to find maven dependency for ur repo.

I tried:

Searching in https://mvnrepository.com/search?q=hcl4j
creating a project in intellij with gradle framework support but it is also not able to import the dependency

Disable log lines when parsing

Hi,

I'm not sure if this is even possible (can't find log lines in any code you've written) but whenever hcl4j parses something it has some log lines like this:

[12:50:54 INFO]: Block Element: firstRun - Attribute
[12:50:54 INFO]: Block Element: core - Block
[12:50:54 INFO]: Block Element: core - Block

Is there any way these can be disabled?

Cheers.

Infinite loop resulting in StackOverflowError when referring to resource properties

The following .tf file results in an infinite loop and StackOverflowError as a consequence:

resource "aws_acm_certificate" "cert_1" {
  domain_name = "example.com"
  subject_alternative_names = ["example.com"]
  validation_method = "DNS"
}
locals {
 c = aws_acm_certificate.cert_1.domain_validation_options
}

in hcl4j 0.6.1 while it works fine in hcl4j 0.4.4.

Exception head

com.bertramlabs.plugins.hcl4j.HCLMyParserSpec > should generate Map from hcl FAILED
    java.lang.StackOverflowError
        at org.apache.groovy.json.internal.SimpleCache.get(SimpleCache.java:44)
        at org.apache.groovy.json.internal.CharBuf.addInt(CharBuf.java:140)
        at groovy.json.DefaultJsonGenerator.writeNumber(DefaultJsonGenerator.java:127)
        at groovy.json.DefaultJsonGenerator.writeObject(DefaultJsonGenerator.java:194)
        at groovy.json.DefaultJsonGenerator.writeMapEntry(DefaultJsonGenerator.java:387)
        at groovy.json.DefaultJsonGenerator.writeMap(DefaultJsonGenerator.java:375)
        at groovy.json.DefaultJsonGenerator.writeObject(DefaultJsonGenerator.java:237)
        at groovy.json.DefaultJsonGenerator.writeMapEntry(DefaultJsonGenerator.java:387)

"Error Parsing Numerical Value" when using a number minus something

The following code:

locals {
  one = 1
  two = 3 - one
}

fails with:

com.bertramlabs.plugins.hcl4j.HCLParserException: Error Parsing Numerical Value in HCL Attribute 
        at com.bertramlabs.plugins.hcl4j.HCLParser.processValue(HCLParser.java:841)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:462)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:656)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processSymbolPass2(HCLParser.java:418)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:315)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:276)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:200)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:183)
[...]
Caused by: java.lang.NumberFormatException: For input string: "-"
        at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043)
        at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
        at java.lang.Double.parseDouble(Double.java:538)
        at com.bertramlabs.plugins.hcl4j.HCLParser.processValue(HCLParser.java:838)
        ... 54 more

when running new HCLParser().parse() against it.

Using hcl4j 0.7.3

Processing Error when having colon char in value

Version: 0.7.2

The first test testValueWithoutColon passes while the second test testValueWithColon fails.

import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;

import com.bertramlabs.plugins.hcl4j.HCLParser;
import org.junit.jupiter.api.Test;

class HCL4JBugReport {

    @Test
    void testValueWithoutColon() {
        String valueWithoutColon = """
    variable "variable1"{
      default = [
        {
          key = "someKey"
          attributes = {
            "attribute1" = "valueWithoutColon"
          }
        }
      ]
    }""";
        HCLParser parser = new HCLParser();
        assertDoesNotThrow(
                () -> parser.parse(valueWithoutColon));
    }


    @Test
    void testValueWithColon() {
        String valueWithColon = """
    variable "variable1"{
      default = [
        {
          key = "someKey"
          attributes = {
            "attribute1" = ":valueWithColon"
          }
        }
      ]
    }""";
        HCLParser parser = new HCLParser();
        assertDoesNotThrow(
                () -> parser.parse(valueWithColon));
    }
}

05:58:10.274 [Test worker] ERROR com.bertramlabs.plugins.hcl4j.HCLParser - Error Parsing HCL...Illegal character <(=) - state: 22> found on line: 6 col: 22
com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(=) - state: 22> found on line: 6 col: 22
	at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:1403) ~[hcl4j-0.7.2.jar:?]
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:302) ~[hcl4j-0.7.2.jar:?]
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:123) ~[hcl4j-0.7.2.jar:?]
	at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:110) ~[hcl4j-0.7.2.jar:?]

Unable to parse the terraform array code: `security_group_id = [var.test]`

Parse this code security_group_ids = [var.test], the result is ArrayList = []

parsing failure on seeing `\`

Here is the content of my tf file -

access_log_settings {
destination_arn = "${aws_cloudwatch_log_group.api_gw_cloudwatch.arn}"
format = "${replace(file("api_log_format.json"), "\n", "")}"
}

And parsing fails when it encounters "".

Stacktrace -

Exception in thread "main" com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <() - state: 26> found on line: 3 col: 64
at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:993)
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:186)
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:173)
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:113)
at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:74)
at Main.isRemoteStateConfigured(Main.java:17)
at Main.main(Main.java:30)

Update symbol classes to use Long for position, matching JFlex

I'm using Maven and with 0.9.1 I'm getting the same error as in #53. I tried to build a new jar from master, but am getting many compile errors during task compileJava like:

build/generated/sources/main/com/bertramlabs/plugins/hcl4j/HCLLexer.java:1894: error: incompatible types: long cannot be converted to Integer
            { currentBlock.appendChild(new StringPrimitiveType(yyline,yycolumn,yychar));
                                                                               ^

Are there any special steps needed to compile or is the build simply broken right now?

I have tried to parse "terraform-aws-vpc" main.tf but it give me below error

Exception in thread "main" com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(l) - state: 6> found on line: 3 col: 5

is this because due to "interpolation syntax"?

License?

What license is this available under?

HCL v2 support

Hello,

Are you planning to add HCL v2 (terraform 0.12) support?

Thanks!

Bug: Blocks with multiple identifiers are not parsed correctly

As a hcl4j user I would like to parse well defined HCL (2) according to the language spec.

resource xxx "images" {
  default = "empty.jpg"
}

Is a resource block with labels xxx (identifier) and "images" (string literal) wrt. to the language spec.

The parser parses it to a block with name xxx and silently drops the preceding resource.

Disclaimer: Not sure whether this is only valid HCL 2 while hcl4j currently only supports HCL (1), cf. #5?

"HCLParserException: Illegal character <(a) - state: 6>" passing a provider with alias

The following code:

module "submodule" {
  source                 = "./submodule"
  providers              = {
    aws.us-west-2-infrastructure = aws.us-west-2-infrastructure
  }
}

fails with:

com.bertramlabs.plugins.hcl4j.HCLParserException: Illegal character <(a) - state: 6> found on line: 4 col: 5
        at com.bertramlabs.plugins.hcl4j.HCLLexer.yylex(HCLLexer.java:1403)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:302)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:276)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:200)
        at com.bertramlabs.plugins.hcl4j.HCLParser.parse(HCLParser.java:183)

when running new HCLParser().parse() against it.

Using hcl4j 0.7.3

Dependabot?

I suggest to consider configuring @dependabot for managing the dependencies of the library. Some of the dependencies we are using are already a couple of years old (2019, 2020).

Lexing error with dotted attribute names

This has the same symptoms as #13. I don't know whether it's the same problem or not.

I've worked a repro case down to

parser.parse ("module \"foo\" { providers = { bar.baz = quux } }")

This results in

Execution error (HCLParserException) at com.bertramlabs.plugins.hcl4j.HCLLexer/yylex (HCLLexer.java:1085).
Illegal character <(b) - state: 6> found on line: 1 col: 32

(The spacing may be off. I retyped that from a different machine).

I don't know whether this is related or totally different, or even if this is working as designed. If I take out the dot from the inner attribute name:

parser.parse ("module \"foo\" { providers = { barbaz = quux } }")

The resulting hash map has a Null property value for the barbaz key. Maybe because it's a nonsense value with no variable interpretation.

If I make that a string:

parser.parse ("module \"foo\" { providers = { barbaz = \"quux\" } }")

it works as I expect.

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