comparison mercurial/templatefuncs.py @ 38448:dae829b4de78

templater: introduce filter() function to remove empty items from list

The primary use case is to filter out "tip" from a list of tags.

38447:b6294c113794

        except IndexError:
            pass

    return templatefilters.fill(text, width, initindent, hangindent)

@templatefunc('formatnode(node)', requires={'ui'})
def formatnode(context, mapping, args):
    """Obtain the preferred form of a changeset hash. (DEPRECATED)"""
    if len(args) != 1:
        # i18n: "formatnode" is a keyword

38448:dae829b4de78

        except IndexError:
            pass

    return templatefilters.fill(text, width, initindent, hangindent)

@templatefunc('filter(iterable)')
def filter_(context, mapping, args):
    """Remove empty elements from a list or a dict."""
    if len(args) != 1:
        # i18n: "filter" is a keyword
        raise error.ParseError(_("filter expects one argument"))
    iterable = evalwrapped(context, mapping, args[0])
    def select(w):
        return w.tobool(context, mapping)
    return iterable.filter(context, mapping, select)

@templatefunc('formatnode(node)', requires={'ui'})
def formatnode(context, mapping, args):
    """Obtain the preferred form of a changeset hash. (DEPRECATED)"""
    if len(args) != 1:
        # i18n: "formatnode" is a keyword