Estoy intentando utilizar lstlistingalgún código Python con formato personalizado. El problema es que algunas palabras se reconocen como palabras clave aunque no las quiero como tales. Intenté usar el comando deletekeywordspero sin éxito.
El siguiente es un documento mcve tex que reproduce mi problema: las palabras applyy hashse mostrarán en azul, el color asignado a las palabras clave.
\documentclass[12pt, letterpaper]{article}
\usepackage{listings}
\usepackage[dvipsnames,table,xcdraw]{xcolor}
\begin{document}
\lstset{language=Python,
tabsize=4,
%frame=lines,
caption={Python function to split between train and test sets.},
label={lst:code_direct},
literate={~} {$\sim$}{1},
backgroundcolor=\color{white}, % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
basicstyle=\footnotesize, % the size of the fonts that are used for the code
breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
%breaklines=true, % sets automatic line breaking
captionpos=b, % sets the caption-position to bottom
commentstyle=\color{gray}\textit, % comment style
% deletekeywords={hash}, % if you want to delete keywords from the given language
escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
extendedchars=true, % lets you use non-ASCII characters; for 8-bits encodings only, not work with UTF-8
frame=tb, % adds a frame around the code
keepspaces=true, % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
keywordstyle=\color{blue}\bfseries, % keyword style
language=Python, % the language of the code (can be overrided per snippet)
%otherkeywords={*,...}, % if you want to add more keywords to the set
numbers=left, % where to put the line-numbers; possible values are (none, left, right)
numbersep=5pt, % how far the line-numbers are from the code
numberstyle=\tiny\color{gray}, % the style that is used for the line-numbers
rulecolor=\color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
showspaces=false, % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
showstringspaces=false, % underline spaces within strings only
showtabs=false, % show tabs within strings adding particular underscores
stepnumber=1, % the step between two line-numbers. If it's 1, each line will be numbered
stringstyle=\ttb\color{red}, % string literal style
tabsize=2, % sets default tabsize to 2 spaces
title=\lstname, % show the filename of files included with \lstinputlisting; also try caption instead of title
columns=fixed, % Using fixed column width (for e.g. nice alignment)
emph ={split_train_test_by_id, test_set_check},
emphstyle=\color{red},
morekeywords={split_train_test_by_id}
deletekeywords={hash,apply}
}
\begin{lstlisting}
def split_train_test_by_id(data, test_ratio, id_column,
hash=hashlib.md5):
ids = data[id_column];
in_test_set = ids.apply(lambda _id: test_set_check(_id,
test_ratio, hash));
return data.loc[~in_test_set], data.loc[in_test_set];
# The check on the id is to see the value of the last byte
# If this value is less then test_ratio*256 (assuming uniform
# distribution)
# then will return true otherwise false. The fraction of true
# will be equal to test_ratio
def test_set_check(identifier, test_ratio, hash):
limit = test_ratio*256; #1byte
#digest will calculate the hash value
res = hash(np.int64(identifier)).digest()[-1];
return res<limit;
\end{lstlisting}
\end{document}
Respuesta1
El archivo lstlang1.sty(use el comando kpsewhich lstlang1.stypara encontrarlo) contiene la definición de los lenguajes Python para listings. Las palabras clave se definen en dos grupos:
morekeywords={access, and, break, class, continue, def, del, elif, else,%
except, exec, finally, for, from, global, if, import, in, is, lambda,%
not, or, pass, print, raise, return, try, while},%
% Built-ins
morekeywords=[2]{abs, all, any, basestring, bin, bool, bytearray,%
callable, chr, classmethod, cmp, compile, complex, delattr, dict, dir,%
divmod, enumerate, eval, execfile, file, filter, float, format,%
frozenset, getattr, globals, hasattr, hash, help, hex, id, input, int,%
isinstance, issubclass, iter, len, list, locals, long, map, max,%
memoryview, min, next, object, oct, open, ord, pow, property, range,%
raw_input, reduce, reload, repr, reversed, round, set, setattr, slice,%
sorted, staticmethod, str, sum, super, tuple, type, unichr, unicode,%
vars, xrange, zip, apply, buffer, coerce, intern},%
Las palabras clave applyy hashestán en el segundo grupo. Para eliminarlos, debes utilizar:
deletekeywords=[2]{hash,apply},
Aquí está su MWE corregido (con una coma al final decadallave):
\documentclass[12pt, letterpaper]{article}
\usepackage{listings}
\usepackage[dvipsnames,table,xcdraw]{xcolor}
\begin{document}
\lstset{language=Python,
tabsize=4,
%frame=lines,
caption={Python function to split between train and test sets.},
label={lst:code_direct},
literate={~} {$\sim$}{1},
backgroundcolor=\color{white}, % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
basicstyle=\footnotesize, % the size of the fonts that are used for the code
breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
%breaklines=true, % sets automatic line breaking
captionpos=b, % sets the caption-position to bottom
commentstyle=\color{gray}\textit, % comment style
% deletekeywords={hash}, % if you want to delete keywords from the given language
escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
extendedchars=true, % lets you use non-ASCII characters; for 8-bits encodings only, not work with UTF-8
frame=tb, % adds a frame around the code
keepspaces=true, % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
keywordstyle=\color{blue}\bfseries, % keyword style
language=Python, % the language of the code (can be overrided per snippet)
%otherkeywords={*,...}, % if you want to add more keywords to the set
numbers=left, % where to put the line-numbers; possible values are (none, left, right)
numbersep=5pt, % how far the line-numbers are from the code
numberstyle=\tiny\color{gray}, % the style that is used for the line-numbers
rulecolor=\color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
showspaces=false, % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
showstringspaces=false, % underline spaces within strings only
showtabs=false, % show tabs within strings adding particular underscores
stepnumber=1, % the step between two line-numbers. If it's 1, each line will be numbered
stringstyle=\ttb\color{red}, % string literal style
tabsize=2, % sets default tabsize to 2 spaces
title=\lstname, % show the filename of files included with \lstinputlisting; also try caption instead of title
columns=fixed, % Using fixed column width (for e.g. nice alignment)
emph ={split_train_test_by_id, test_set_check},
emphstyle=\color{red},
morekeywords={split_train_test_by_id}, % comma added!
deletekeywords=[2]{hash,apply}, % [2] and comma added!
}
\begin{lstlisting}
def split_train_test_by_id(data, test_ratio, id_column,
hash=hashlib.md5):
ids = data[id_column];
in_test_set = ids.apply(lambda _id: test_set_check(_id,
test_ratio, hash));
return data.loc[~in_test_set], data.loc[in_test_set];
# The check on the id is to see the value of the last byte
# If this value is less then test_ratio*256 (assuming uniform
# distribution)
# then will return true otherwise false. The fraction of true
# will be equal to test_ratio
def test_set_check(identifier, test_ratio, hash):
limit = test_ratio*256; #1byte
#digest will calculate the hash value
res = hash(np.int64(identifier)).digest()[-1];
return res<limit;
\end{lstlisting}
\end{document}
Respuesta2
Bueno, creo que sé que tu problema es. Cree que "eliminar palabras clave" elimina una palabra clave predefinida, pero en realidad elimina una palabra clave de la lista personalizada que creó en "más palabras clave".
Desafortunadamente, lo único que funcionaría para mí sería definir un estilo personalizado para Python desde cero, usando lo que ya tienes. Luego, debes agregar manualmente las palabras clave que desees en "más palabras clave".
\lstdefinestyle{pythoncode}{
language={}, %You shall leave this blank
tabsize=4,
caption={Python function to split between train and test sets.},
label={lst:code_direct},
literate={~} {$\sim$}{1},
backgroundcolor=\color{white},
basicstyle=\footnotesize,
breakatwhitespace=false,
captionpos=b,
morecomment=[l]{##},
commentstyle=\color{gray}\textit,
escapeinside={\%*}{*)},
extendedchars=true,
frame=tb,
keepspaces=true,
keywordstyle=\color{blue}\bfseries,
morekeywords={return,def,apply,lambda}, %New keywords
numbers=left,
numbersep=5pt,
numberstyle=\tiny\color{gray},
rulecolor=\color{black},
showspaces=false,
showstringspaces=false,
showtabs=false,
stepnumber=1,
stringstyle=\ttb\color{red},
tabsize=2,
title=\lstname,
columns=fixed,
emph ={split_train_test_by_id, test_set_check},
emphstyle=\color{red}}
Luego, para usar este estilo, use
\begin{lstlisting}[style=pythoncode]
**Your Python Code here**
\end{lstlisting}
Probablemente no sea lo mejor, pero debería funcionar mientras alguien tenga una mejor respuesta.