diff options
Diffstat (limited to 'lib/xmerl')
| -rw-r--r-- | lib/xmerl/src/xmerl_regexp.erl | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/xmerl/src/xmerl_regexp.erl b/lib/xmerl/src/xmerl_regexp.erl index 0c53e6f34a..9303bdb125 100644 --- a/lib/xmerl/src/xmerl_regexp.erl +++ b/lib/xmerl/src/xmerl_regexp.erl @@ -593,7 +593,7 @@ sub_first_match(S, {regexp,RE}) -> nomatch -> nomatch end. - + %% This is the regular expression grammar used. It is equivalent to the %% one used in AWK, except that we allow ^ $ to be used anywhere and fail %% in the matching. @@ -961,7 +961,7 @@ re_apply_or(never_match, R2) -> R2; re_apply_or(R1, never_match) -> R1; re_apply_or(nomatch, R2) -> R2; re_apply_or(R1, nomatch) -> R1. - + %% Record definitions for the NFA, DFA and compiler. -record(nfa_state, {no,edges=[],accept=no}). @@ -1026,7 +1026,7 @@ parse_reas([{RegExp,A}|REAs], S) -> {error,E} -> {error,E} end; parse_reas([], Stack) -> {ok,reverse(Stack)}. - + %% build_combined_nfa(RegExpActionList) -> {NFA,StartState}. %% Build the combined NFA using Thompson's construction straight out %% of the book. Build the separate NFAs in the same order as the @@ -1147,7 +1147,7 @@ nfa_comp_class(Cc) -> comp_crs([{C1,C2}|Crs], Last) -> [{Last,C1-1}|comp_crs(Crs, C2+1)]; comp_crs([], Last) -> [{Last,maxchar}]. - + %% build_dfa(NFA, NfaStartState) -> {DFA,DfaStartState}. %% Build a DFA from an NFA using "subset construction". The major %% difference from the book is that we keep the marked and unmarked @@ -1282,7 +1282,7 @@ accept([St|Sts], NFA) -> #nfa_state{accept=no} -> accept(Sts, NFA) end; accept([], _NFA) -> no. - + %% minimise_dfa(DFA, StartState, FirstState) -> {DFA,StartState}. %% Minimise the DFA by removing equivalent states. We consider a %% state if both the transitions and the their accept state is the @@ -1331,7 +1331,7 @@ pack_dfa([D|DFA], NewN, Rs, PDFA) -> pack_dfa(DFA, NewN+1, [{D#dfa_state.no,NewN}|Rs], [D#dfa_state{no=NewN}|PDFA]); pack_dfa([], _NewN, Rs, PDFA) -> {PDFA,Rs}. - + %% comp_apply(String, StartPos, DFAReg) -> {match,RestPos,Rest} | nomatch. %% Apply the DFA of a regular expression to a string. If %% there is a match return the position of the remaining string and |