Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

1 files changed, 145 insertions, 0 deletions

diff --git a/src/nvim/api/buffer.h b/src/nvim/api/buffer.h
new file mode 100644
index 0000000000..04f9422c19
--- /dev/null
+++ b/src/nvim/api/buffer.h
@@ -0,0 +1,145 @@
+#ifndef NEOVIM_API_BUFFER_H
+#define NEOVIM_API_BUFFER_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "api/defs.h"
+
+/// Gets the buffer line count
+///
+/// @param buffer The buffer handle
+/// @param[out] err Details of an error that may have occurred
+/// @return The line count
+int64_t buffer_get_length(Buffer buffer, Error *err);
+
+/// Gets a buffer line
+///
+/// @param buffer The buffer handle
+/// @param index The line index
+/// @param[out] err Details of an error that may have occurred
+/// @return The line string
+String buffer_get_line(Buffer buffer, int64_t index, Error *err);
+
+/// Sets a buffer line
+///
+/// @param buffer The buffer handle
+/// @param index The line index
+/// @param line The new line.
+/// @param[out] err Details of an error that may have occurred
+void buffer_set_line(Buffer buffer, int64_t index, String line, Error *err);
+
+/// Deletes a buffer line
+///
+/// @param buffer The buffer handle
+/// @param index The line index
+/// @param[out] err Details of an error that may have occurred
+void buffer_del_line(Buffer buffer, int64_t index, Error *err);
+
+/// Retrieves a line range from the buffer
+///
+/// @param buffer The buffer handle
+/// @param start The first line index
+/// @param end The last line index
+/// @param include_start True if the slice includes the `start` parameter
+/// @param include_end True if the slice includes the `end` parameter
+/// @param[out] err Details of an error that may have occurred
+/// @return An array of lines
+StringArray buffer_get_slice(Buffer buffer,
+                             int64_t start,
+                             int64_t end,
+                             bool include_start,
+                             bool include_end,
+                             Error *err);
+
+/// Replaces a line range on the buffer
+///
+/// @param buffer The buffer handle
+/// @param start The first line index
+/// @param end The last line index
+/// @param include_start True if the slice includes the `start` parameter
+/// @param include_end True if the slice includes the `end` parameter
+/// @param lines An array of lines to use as replacement(A 0-length array
+///        will simply delete the line range)
+/// @param[out] err Details of an error that may have occurred
+void buffer_set_slice(Buffer buffer,
+                      int64_t start,
+                      int64_t end,
+                      bool include_start,
+                      bool include_end,
+                      StringArray replacement,
+                      Error *err);
+
+/// Gets a buffer variable
+///
+/// @param buffer The buffer handle
+/// @param name The variable name
+/// @param[out] err Details of an error that may have occurred
+/// @return The variable value
+Object buffer_get_var(Buffer buffer, String name, Error *err);
+
+/// Sets a buffer variable. Passing 'nil' as value deletes the variable.
+///
+/// @param buffer The buffer handle
+/// @param name The variable name
+/// @param value The variable value
+/// @param[out] err Details of an error that may have occurred
+/// @return The old value
+Object buffer_set_var(Buffer buffer, String name, Object value, Error *err);
+
+/// Gets a buffer option value
+///
+/// @param buffer The buffer handle
+/// @param name The option name
+/// @param[out] err Details of an error that may have occurred
+/// @return The option value
+Object buffer_get_option(Buffer buffer, String name, Error *err);
+
+/// Sets a buffer option value. Passing 'nil' as value deletes the option(only
+/// works if there's a global fallback)
+///
+/// @param buffer The buffer handle
+/// @param name The option name
+/// @param value The option value
+/// @param[out] err Details of an error that may have occurred
+void buffer_set_option(Buffer buffer, String name, Object value, Error *err);
+
+/// Gets the full file name for the buffer
+///
+/// @param buffer The buffer handle
+/// @param[out] err Details of an error that may have occurred
+/// @return The buffer name
+String buffer_get_name(Buffer buffer, Error *err);
+
+/// Sets the full file name for a buffer
+///
+/// @param buffer The buffer handle
+/// @param name The buffer name
+/// @param[out] err Details of an error that may have occurred
+void buffer_set_name(Buffer buffer, String name, Error *err);
+
+/// Checks if a buffer is valid
+///
+/// @param buffer The buffer handle
+/// @return true if the buffer is valid, false otherwise
+bool buffer_is_valid(Buffer buffer);
+
+/// Inserts a sequence of lines to a buffer at a certain index
+///
+/// @param buffer The buffer handle
+/// @param lnum Insert the lines before `lnum`. If negative, it will append
+///        to the end of the buffer.
+/// @param lines An array of lines
+/// @param[out] err Details of an error that may have occurred
+void buffer_insert(Buffer buffer, int64_t index, StringArray lines, Error *err);
+
+/// Return a tuple (row,col) representing the position of the named mark
+///
+/// @param buffer The buffer handle
+/// @param name The mark's name
+/// @param[out] err Details of an error that may have occurred
+/// @return The (row, col) tuple
+Position buffer_get_mark(Buffer buffer, String name, Error *err);
+
+#endif  // NEOVIM_API_BUFFER_H
+