[bug] XMLSyntaxError

[jy-tan]

Describe the bug
I encountered XMLSyntaxError when trying to reproduce the text summarization example.

To Reproduce
Steps to reproduce the behavior:

Rail spec:

<rail version="0.1">

<script language='python'>
document = open("search.txt", "r").read()
</script>

<output>
    <string
        name="summary"
        description="Summarize the given document faithfully."
        format="similar-to-document: {document}, 0.60"
        on-fail-similar-to-document="filter" 
    />
</output>

<prompt>
Summarize the following document:

{{document}}

@complete_json_suffix
</prompt>
</rail>

(I only changed the document path, which is a valid path for me.)

Running the command

guard = gd.Guard.from_rail_string(rail_str)

gives the following error:

Traceback (most recent call last):

  File /databricks/python/lib/python3.9/site-packages/IPython/core/interactiveshell.py:3378 in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)

  File <command-3862015891448427>:27
    guard = gd.Guard.from_rail_string(rail_str)

  File /local_disk0/.ephemeral_nfs/envs/pythonEnv-84b67d00-0c2e-469a-8873-18f5bc500df3/lib/python3.9/site-packages/guardrails/guard.py:132 in from_rail_string
    return cls(Rail.from_string(rail_string), num_reasks=num_reasks)

  File /local_disk0/.ephemeral_nfs/envs/pythonEnv-84b67d00-0c2e-469a-8873-18f5bc500df3/lib/python3.9/site-packages/guardrails/rail.py:108 in from_string
    return cls.from_xml(ET.fromstring(string, parser=XMLPARSER))

  File /local_disk0/.ephemeral_nfs/envs/pythonEnv-84b67d00-0c2e-469a-8873-18f5bc500df3/lib/python3.9/site-packages/guardrails/rail.py:139 in from_xml
    raw_output_schema = ET.fromstring(raw_output_schema, parser=XMLPARSER)

  File src/lxml/etree.pyx:3257 in lxml.etree.fromstring

  File src/lxml/parser.pxi:1916 in lxml.etree._parseMemoryDocument

  File src/lxml/parser.pxi:1796 in lxml.etree._parseDoc

  File src/lxml/parser.pxi:1085 in lxml.etree._BaseParser._parseUnicodeDoc

  File src/lxml/parser.pxi:618 in lxml.etree._ParserContext._handleParseResultDoc

  File src/lxml/parser.pxi:728 in lxml.etree._handleParseResult

  File src/lxml/parser.pxi:657 in lxml.etree._raiseParseError

  File <string>:6
XMLSyntaxError: attributes construct error, line 6, column 196

Expected behavior
The Guard should be created with no errors.

Library version:
Installed directly from GitHub, main branch.

Additional context
Removing the

format="similar-to-document: {document}, 0.60"
on-fail-similar-to-document="filter" 

doesn't throw an error, but that would defeat its intended purpose.

FWIW, switching to the saliency-check validator throws the same error.

[maxdml]

Can you share what is the content of line 5 of your input document?

If there is a double quote in there, can you replace it with " and re-run?

[irgolic]

Hey @jy-tan, @maxdml, sorry for the late reply. I've pushed a PR that automatically replaces " with ", could you give it a try?