56976a127c
If set, the COLUMNS environment variable will take precedence over terminal width. However, please note that COLUMNS is usually *not* exported by shells to child processes, so in most cases COLUMNS will be undefined for ledger---hence the motivation for this change. Terminal width is queried using ioctl() on stdin. For the sake of portability the querying is done only on platform where ioctl() is detected as supported at compile-time.
441 lines
14 KiB
C++
441 lines
14 KiB
C++
/*
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* Copyright (c) 2003-2014, John Wiegley. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of New Artisans LLC nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <system.hh>
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#include "select.h"
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#include "journal.h"
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#include "account.h"
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#include "report.h"
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#include "output.h"
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#include "print.h"
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#include "chain.h"
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#include "filters.h"
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#include "scope.h"
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#include "op.h"
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namespace ledger {
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namespace {
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bool get_principal_identifiers(expr_t::ptr_op_t expr, string& ident,
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bool do_transforms = false)
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{
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bool result = true;
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if (expr->is_ident()) {
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string name(expr->as_ident());
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if (name == "date" || name == "aux_date" || name == "payee") {
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if (! ident.empty() &&
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! (name == "date" || name == "aux_date" || name == "payee"))
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result = false;
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ident = name;
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}
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else if (name == "account") {
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if (! ident.empty() && ! (name == "account"))
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result = false;
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ident = name;
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if (do_transforms)
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expr->set_ident("display_account");
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}
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else if (name == "amount") {
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if (! ident.empty() && ! (name == "amount"))
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result = false;
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ident = name;
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if (do_transforms)
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expr->set_ident("display_amount");
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}
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else if (name == "total") {
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if (! ident.empty() && ! (name == "total"))
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result = false;
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ident = name;
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if (do_transforms)
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expr->set_ident("display_total");
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}
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}
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if (expr->kind > expr_t::op_t::TERMINALS || expr->is_scope()) {
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if (expr->left()) {
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if (! get_principal_identifiers(expr->left(), ident, do_transforms))
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result = false;
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if (expr->kind > expr_t::op_t::UNARY_OPERATORS && expr->has_right())
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if (! get_principal_identifiers(expr->right(), ident, do_transforms))
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result = false;
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}
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}
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return result;
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}
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}
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value_t select_command(call_scope_t& args)
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{
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string text = "select " + join_args(args);
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if (text.empty())
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throw std::logic_error(_("Usage: select TEXT"));
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report_t& report(find_scope<report_t>(args));
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// Our first step is to divide the select statement into its principal
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// parts:
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//
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// SELECT <VALEXPR-LIST>
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// FROM <NAME>
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// WHERE <VALEXPR>
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// DISPLAY <VALEXPR>
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// COLLECT <VALEXPR>
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// GROUP BY <VALEXPR>
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// STYLE <NAME>
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boost::regex select_re
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("(select|from|where|display|collect|group\\s+by|style)\\s+"
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"(.+?)"
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"(?=(\\s+(from|where|display|collect|group\\s+by|style)\\s+|$))",
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boost::regex::perl | boost::regex::icase);
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boost::regex from_accounts_re("from\\s+accounts\\>");
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bool accounts_report = boost::regex_search(text, from_accounts_re);
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boost::sregex_iterator m1(text.begin(), text.end(), select_re);
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boost::sregex_iterator m2;
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expr_t::ptr_op_t report_functor;
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std::ostringstream formatter;
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while (m1 != m2) {
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const boost::match_results<string::const_iterator>& match(*m1);
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string keyword(match[1]);
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string arg(match[2]);
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DEBUG("select.parse", "keyword: " << keyword);
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DEBUG("select.parse", "arg: " << arg);
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if (keyword == "select") {
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expr_t args_expr(arg);
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value_t columns(split_cons_expr(args_expr.get_op()));
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bool first = true;
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string thus_far = "";
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std::size_t cols = 0;
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#if HAVE_IOCTL
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struct winsize ws;
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#endif
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if (report.HANDLED(columns_))
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cols = lexical_cast<std::size_t>(report.HANDLER(columns_).value);
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else if (const char * columns_env = std::getenv("COLUMNS"))
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cols = lexical_cast<std::size_t>(columns_env);
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#if HAVE_IOCTL
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else if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) != -1)
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cols = ws.ws_col;
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#endif
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else
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cols = 80;
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std::size_t date_width =
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(report.HANDLED(date_width_) ?
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lexical_cast<std::size_t>(report.HANDLER(date_width_).str()) :
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static_cast<std::size_t>
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(format_date(CURRENT_DATE(),FMT_PRINTED).length()));
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std::size_t payee_width =
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(report.HANDLED(payee_width_) ?
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lexical_cast<std::size_t>(report.HANDLER(payee_width_).str()) :
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std::size_t(double(cols) * 0.263157));
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std::size_t account_width =
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(report.HANDLED(account_width_) ?
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lexical_cast<std::size_t>(report.HANDLER(account_width_).str()) :
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std::size_t(double(cols) * 0.302631));
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std::size_t amount_width =
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(report.HANDLED(amount_width_) ?
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lexical_cast<std::size_t>(report.HANDLER(amount_width_).str()) :
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std::size_t(double(cols) * 0.157894));
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std::size_t total_width =
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(report.HANDLED(total_width_) ?
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lexical_cast<std::size_t>(report.HANDLER(total_width_).str()) :
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amount_width);
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std::size_t meta_width =
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(report.HANDLED(meta_width_) ?
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lexical_cast<std::size_t>(report.HANDLER(meta_width_).str()) :
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10);
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bool saw_payee = false;
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bool saw_account = false;
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std::size_t cols_needed = 0;
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foreach (const value_t& column, columns.to_sequence()) {
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string ident;
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if (get_principal_identifiers(as_expr(column), ident)) {
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if (ident == "date" || ident == "aux_date") {
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cols_needed += date_width + 1;
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}
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else if (ident == "payee") {
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cols_needed += payee_width + 1;
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saw_payee = true;
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}
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else if (ident == "account") {
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cols_needed += account_width + 1;
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saw_account = true;
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}
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else if (ident == "amount") {
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cols_needed += amount_width + 1;
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}
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else if (ident == "total") {
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cols_needed += total_width + 1;
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}
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else {
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cols_needed += meta_width + 1;
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}
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}
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}
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while ((saw_account || saw_payee) && cols_needed < cols) {
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if (saw_account && cols_needed < cols) {
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++account_width;
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++cols_needed;
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if (cols_needed < cols) {
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++account_width;
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++cols_needed;
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}
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}
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if (saw_payee && cols_needed < cols) {
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++payee_width;
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++cols_needed;
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}
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}
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while ((saw_account || saw_payee) && cols_needed > cols &&
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account_width > 5 && payee_width > 5) {
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DEBUG("auto.columns", "adjusting account down");
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if (saw_account && cols_needed > cols) {
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--account_width;
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--cols_needed;
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if (cols_needed > cols) {
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--account_width;
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--cols_needed;
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}
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}
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if (saw_payee && cols_needed > cols) {
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--payee_width;
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--cols_needed;
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}
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DEBUG("auto.columns", "account_width now = " << account_width);
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}
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if (! report.HANDLED(date_width_))
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report.HANDLER(date_width_).value = to_string(date_width);
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if (! report.HANDLED(payee_width_))
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report.HANDLER(payee_width_).value = to_string(payee_width);
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if (! report.HANDLED(account_width_))
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report.HANDLER(account_width_).value = to_string(account_width);
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if (! report.HANDLED(amount_width_))
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report.HANDLER(amount_width_).value = to_string(amount_width);
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if (! report.HANDLED(total_width_))
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report.HANDLER(total_width_).value = to_string(total_width);
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foreach (const value_t& column, columns.to_sequence()) {
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if (first)
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first = false;
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else
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formatter << ' ';
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formatter << "%(";
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string ident;
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if (get_principal_identifiers(as_expr(column), ident, true)) {
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if (ident == "date" || ident == "aux_date") {
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formatter << "ansify_if("
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<< "ansify_if(justify(format_date(";
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as_expr(column)->print(formatter);
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formatter << "), int(date_width)),";
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formatter << "green if color and date > today),"
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<< "bold if should_bold)";
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if (! thus_far.empty())
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thus_far += " + ";
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thus_far += "int(date_width) + 1";
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}
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else if (ident == "payee") {
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formatter << "ansify_if("
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<< "ansify_if(justify(truncated(";
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as_expr(column)->print(formatter);
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formatter << ", int(payee_width)), int(payee_width)),";
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formatter << "bold if color and !cleared and actual),"
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<< "bold if should_bold)";
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if (! thus_far.empty())
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thus_far += " + ";
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thus_far += "int(payee_width) + 1";
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}
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else if (ident == "account") {
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formatter << "ansify_if(";
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if (accounts_report) {
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formatter << "ansify_if(";
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formatter << "partial_account(options.flat), blue if color),";
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} else {
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formatter << "justify(truncated(";
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as_expr(column)->print(formatter);
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formatter << ", int(account_width), int(abbrev_len)),"
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<< "int(account_width), -1, ";
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formatter << "false, color),";
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if (! thus_far.empty())
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thus_far += " + ";
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thus_far += "int(account_width) + 1";
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}
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formatter << " bold if should_bold)";
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}
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else if (ident == "amount" || ident == "total") {
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formatter << "ansify_if("
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<< "justify(scrub(";
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as_expr(column)->print(formatter);
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formatter << "), ";
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if (ident == "amount")
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formatter << "int(amount_width),";
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else
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formatter << "int(total_width),";
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if (! thus_far.empty())
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thus_far += " + ";
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if (ident == "amount")
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thus_far += "int(amount_width)";
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else
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thus_far += "int(total_width)";
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if (thus_far.empty())
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formatter << "-1";
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else
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formatter << thus_far;
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formatter << ", true, color),"
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<< " bold if should_bold)";
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thus_far += " + 1";
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}
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else {
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formatter << "ansify_if("
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<< "justify(truncated(";
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as_expr(column)->print(formatter);
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formatter << ", int(meta_width or 10)), int(meta_width) or 10),";
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formatter << "bold if should_bold)";
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if (! thus_far.empty())
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thus_far += " + ";
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thus_far += "(int(meta_width) or 10) + 1";
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}
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}
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formatter << ")";
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}
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formatter << "\\n";
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DEBUG("select.parse", "formatter: " << formatter.str());
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}
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else if (keyword == "from") {
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if (arg == "xacts" || arg == "txns" || arg == "transactions") {
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report_functor = expr_t::op_t::wrap_functor
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(reporter<>(post_handler_ptr(new print_xacts(report,
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report.HANDLED(raw))),
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report, string("#select")));
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}
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else if (arg == "posts" || arg == "postings") {
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report_functor = expr_t::op_t::wrap_functor
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(reporter<>(post_handler_ptr(new format_posts(report, formatter.str())),
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report, string("#select")));
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}
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else if (arg == "accounts") {
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report_functor = expr_t::op_t::wrap_functor
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(reporter<account_t, acct_handler_ptr, &report_t::accounts_report>
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(acct_handler_ptr(new format_accounts(report, formatter.str())),
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report, string("#select")));
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}
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else if (arg == "commodities") {
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report_functor = expr_t::op_t::wrap_functor
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(reporter<post_t, post_handler_ptr, &report_t::commodities_report>
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(post_handler_ptr(new format_posts(report, formatter.str())),
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report, string("#select")));
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}
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}
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else if (keyword == "where") {
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#if 0
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query_t query;
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keep_details_t keeper(true, true, true);
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expr_t::ptr_op_t expr =
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query.parse_args(string_value(arg).to_sequence(), keeper, false, true);
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report.HANDLER(limit_).on("#select", query.get_query(query_t::QUERY_LIMIT));
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#else
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report.HANDLER(limit_).on("#select", arg);
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#endif
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}
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else if (keyword == "display") {
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report.HANDLER(display_).on("#select", arg);
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}
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else if (keyword == "collect") {
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report.HANDLER(amount_).on("#select", arg);
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}
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else if (keyword == "group by") {
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report.HANDLER(group_by_).on("#select", arg);
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}
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else if (keyword == "style") {
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if (arg == "csv") {
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}
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else if (arg == "xml") {
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}
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else if (arg == "json") {
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}
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else if (arg == "emacs") {
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}
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else if (arg == "org") {
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}
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}
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++m1;
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}
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if (! report_functor) {
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report_functor = expr_t::op_t::wrap_functor
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(reporter<>(post_handler_ptr(new format_posts(report, formatter.str())),
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report, string("#select")));
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}
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call_scope_t call_args(report);
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return report_functor->as_function()(call_args);
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}
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} // namespace ledger
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