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import logging
from prompt_toolkit.enums import DEFAULT_BUFFER
from prompt_toolkit.filters import Condition
from prompt_toolkit.application import get_app
from .packages.parseutils.utils import is_open_quote
_logger = logging.getLogger(__name__)
def _is_complete(sql):
# A complete command is an sql statement that ends with a semicolon, unless
# there's an open quote surrounding it, as is common when writing a
# CREATE FUNCTION command
return sql.endswith(";") and not is_open_quote(sql)
"""
Returns True if the buffer contents should be handled (i.e. the query/command
executed) immediately. This is necessary as we use prompt_toolkit in multiline
mode, which by default will insert new lines on Enter.
"""
def safe_multi_line_mode(pgcli):
@Condition
def cond():
_logger.debug(
'Multi-line mode state: "%s" / "%s"', pgcli.multi_line, pgcli.multiline_mode
)
return pgcli.multi_line and (pgcli.multiline_mode == "safe")
return cond
def buffer_should_be_handled(pgcli):
@Condition
def cond():
if not pgcli.multi_line:
_logger.debug("Not in multi-line mode. Handle the buffer.")
return True
if pgcli.multiline_mode == "safe":
_logger.debug("Multi-line mode is set to 'safe'. Do NOT handle the buffer.")
return False
doc = get_app().layout.get_buffer_by_name(DEFAULT_BUFFER).document
text = doc.text.strip()
return (
text.startswith("\\") # Special Command
or text.endswith(r"\e") # Special Command
or text.endswith(r"\G") # Ended with \e which should launch the editor
or _is_complete(text) # A complete SQL command
or (text == "exit") # Exit doesn't need semi-colon
or (text == "quit") # Quit doesn't need semi-colon
or (text == ":q") # To all the vim fans out there
or (text == "") # Just a plain enter without any text
)
return cond
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