# Iteration 1: Words - comprehensive edge cases
# === Basic words ===
=== bare word
foo
---
(command (word "foo"))
---
=== word with numbers
foo123
---
(command (word "foo123"))
---
=== word with dash
foo-bar
---
(command (word "foo-bar"))
---
=== word with underscore
foo_bar
---
(command (word "foo_bar"))
---
=== word with dot
foo.bar
---
(command (word "foo.bar"))
---
=== word with slash
/usr/bin
---
(command (word "/usr/bin"))
---
=== word starting with number
123abc
---
(command (word "123abc"))
---
=== word all numbers
12345
---
(command (word "12345"))
---
=== word with equals
foo=bar
---
(command (word "foo=bar"))
---
=== word with colon
foo:bar
---
(command (word "foo:bar"))
---
=== word with at sign
foo@bar
---
(command (word "foo@bar"))
---
=== word with percent
foo%bar
---
(command (word "foo%bar"))
---
=== word with caret
foo^bar
---
(command (word "foo^bar"))
---
=== word with plus
foo+bar
---
(command (word "foo+bar"))
---
=== word with comma
foo,bar
---
(command (word "foo,bar"))
---
=== word with tilde
~user
---
(command (word "~user"))
---
=== word with question mark
foo?
---
(command (word "foo?"))
---
=== word with asterisk
foo*
---
(command (word "foo*"))
---
=== word with hash inside
foo#bar
---
(command (word "foo#bar"))
---
=== word with brackets
foo[0]
---
(command (word "foo[0]"))
---
=== relative path
./script.sh
---
(command (word "./script.sh"))
---
=== parent path
../other/file
---
(command (word "../other/file"))
---
=== absolute path with dots
/foo/../bar/./baz
---
(command (word "/foo/../bar/./baz"))
---
# === Single quoted strings ===
=== single quoted word
'hello'
---
(command (word "'hello'"))
---
=== single quoted with spaces
'hello world'
---
(command (word "'hello world'"))
---
=== single quoted with special chars
'$foo `cmd` \n'
---
(command (word "'$foo `cmd` \\n'"))
---
=== single quoted with double quotes inside
'say "hello"'
---
(command (word "'say \"hello\"'"))
---
=== single quoted empty
''
---
(command (word "''"))
---
=== adjacent single quoted
'foo''bar'
---
(command (word "'foo''bar'"))
---
# === Double quoted strings ===
=== double quoted word
"hello"
---
(command (word "\"hello\""))
---
=== double quoted with spaces
"hello world"
---
(command (word "\"hello world\""))
---
=== double quoted empty
""
---
(command (word "\"\""))
---
=== double quoted with single quotes inside
"it's fine"
---
(command (word "\"it's fine\""))
---
=== double quoted with escaped quote
"say \"hello\""
---
(command (word "\"say \\\"hello\\\"\""))
---
=== double quoted with escaped backslash
"path\\to\\file"
---
(command (word "\"path\\\\to\\\\file\""))
---
=== double quoted with newline escape
"line1\nline2"
---
(command (word "\"line1\\nline2\""))
---
=== adjacent double quoted
"foo""bar"
---
(command (word "\"foo\"\"bar\""))
---
# === Mixed quoting ===
=== mixed quotes adjacent
'single'"double"
---
(command (word "'single'\"double\""))
---
=== unquoted with single quoted
foo'bar'baz
---
(command (word "foo'bar'baz"))
---
=== unquoted with double quoted
foo"bar"baz
---
(command (word "foo\"bar\"baz"))
---
=== complex mixed quoting
foo'bar'"baz"qux
---
(command (word "foo'bar'\"baz\"qux"))
---
# === Empty input ===
=== empty input
---
---