started writing lexer after making string lib

string/docs/check/contains.md

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+# string_Contains
+Check if a string has another string in it.
+
+## Arguments
+- haystack (string): the string to check against.
+- needle (string): the string to look for.
+
+## Returns
+found (bool): returns `true` if `haystack` has `needle` inside it. 
+
+## Example
+### Ground
+```python
+call !string_Contains "The task was completed successfully." "success" &found
+println $found # true
+
+call !string_Contains "The task failed." "success" &found
+println $found # false
+```
+
+### Solstice
+```c
+puts string_Contains("The task was completed successfully.", "success") // true
+puts string_Contains("The task failed.", "success") // false
+```

string/docs/check/ends_with.md

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+# string_EndsWith
+Check if a string has another string as a suffix.
+
+## Arguments
+- str (string): the string to check against.
+- suffix (string): the suffix to check for.
+
+## Returns
+hasSuffix (bool): returns `true` if `str` has the given `suffix` as a suffix, otherwise `false`.
+
+## Example
+### Ground
+```python
+call !string_EndsWith "file.txt" ".txt" &hasSuffix
+println $hasSuffix # true
+
+call !string_EndsWith "file.grnd" ".txt" &hasSuffix
+println $hasSuffix # false
+```
+
+### Solstice
+```c
+puts string_EndsWith("file.txt", ".txt") // true
+puts string_EndsWith("file.grnd", ".txt") // false
+```

string/docs/check/starts_with.md

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+# string_StartsWith
+Check if a string is prefixed by another string.
+
+## Arguments
+- str (string): the string to check against.
+- prefix (string): the prefix to check for.
+
+## Returns
+hasPrefix (bool): returns `true` if `str` is prefixed by the given `prefix`, otherwise `false`.
+
+## Example
+### Ground
+```python
+call !string_StartsWith "doc_someFile.txt" "doc_" &hasPrefix
+println $hasPrefix # true
+
+call !string_StartsWith "someFile.txt" "doc_" &hasPrefix
+println $hasPrefix # false
+```
+
+### Solstice
+```c
+puts string_StartsWith("doc_someFile.txt", "doc_") // true
+puts string_StartsWith("someFile.txt", "doc_") // false
+```